Flat Iron Kings Cross in Islington

The atmosphere was quite pleasant and the food of this place I liked a lot and staff too much more friendly.I like this restaurant food so much so I would give it a full rating

An address to remember if you like meat. Very good value for money and friendly service, with rare perfection in listening to the customer (my daughter is gluten intolerant) and the management of order taking was extremely attentive while perfectly mastering the ingredients contained in each dish questioned! But in short, beyond this constraint part, what a joy to have been able to taste tasty meats cooked exactly as desired! Accompaniments good, classic nothing more, but the meat surpasses everything... and that's why we have excellent memories of this restaurant... and a little extra for the vanilla ice cream on the way out

Went at around 4pm, not many customers and got a nice seat by the window facing the street. Service was good and the staff gave me a jug of water and popcorn when I sat down. Just ordered the beef, medium rare, and it arrived in about 7-8 minutes after. The smell of beef was distinct and aromatic but some parts were quite chewy and it made my jaw very tired. I later cut the beef into tiny pieces which was easier to chew. After paying your bill, you get a mini knife which you can exchange for an ice-cream. My daughter previously said it was the best ice-cream but I have my doubts on that. I would only come here just to try the dish but probably only once is enough.

Delicious, welcoming, surprising, this restaurant ticks all the boxes! We each took a meat whose cooking was perfect, and whose selection was ideal (tenderness of the meat, marbling, cutting, thickness, etc.). The sauces are also very good, as are the accompaniments. The service was excellent, not commercial but very friendly and very alert about allergens and the well-being of customers. Surprise at the end of the meal because an Italian ice cream is offered to us! Which we really liked as French people who like to have dessert after our meal.

During our stay in London we were served super good steaks in this restaurant, nice staff, good food, we were absolutely satisfied.

It's the best place in London for meat lovers. Natalia served us very well. Although we had other plans, we changed them to return to Flat Iron for dinner again (both for the quality of the steak and Natalia's service). A place we'll definitely return to.

They absolutely nail their main steak, it is absolutely fantastic! Will definitely be back 🥩

Great restaurant, clean and relaxing atmosphere, The service staff are also very friendly. Steak with creamed spinach, great dinner

affordable restaurant in central London. spacious to sit and not noisy to chat in terms of London restaurant standard. friendly staff. the flat iron steak is spot on. nothing to complain about at this price point. ice cream is good as usual. definitely will visit again.

Always the good food with reasonable price! Staff were friendly and efficient! I always come here for lunch/ dinner before I catch a train. Not too far from Kings Cross station.

The food was AMAIZING. I swear it was the best steak of my life. I got a stake and the green salad. I like my steaks well done and usually they don’t make it how I like it at restaurants but this restaurant made it perfect. And the salad was very refreshing and delicious. Our waiter explained the menu before ordering which was helpful. And the drinks are also very good. So if you love a good stake this is the place.

The steak is tender. The cheese macaroni was amazing. The service staff are friendly and nice . Highly recommended.

Amazing food Amazing price if you like steak? This is your spot

A bit disappointing experience at the Flat Iron Kings Cross! I’ve booked a place for 6 for the two b-days we were celebrating that evening. I mentioned that in the notes in the online booking. Food was okay, however service was really poor. Really slow and our table was literally left without any attention after the food was served for almost an hour. I then spent at least 25 min asking for bill and finally making my payment for our table. Prior booking I saw that Flat Iron do not serve any Desserts, however I saw that people was getting special decorated ice cream dessert plate for their anniversary’s or etc. Not even once staff or anyone mentioned that they know what sort of occasion are we here for. We exchanged a few presents with each other at the table during the evening,so I think occasion was clear. I understand it’s just a nice thing to do from a restaurant and its not compulsory, however I never had any issues with that with all other restaurants I chose for my bdays. Left a bit disappointed to be honest. I refused paying additional 12ish% for the service which automatically was counted in the final bill for all the reasons above. I had then wait again for the bill to be recounted. Maybe add a optional charge at the end after payment to save the hassle? I hope other people will have a more pleasant experience than we did.

Fantastic experience. Our server Rocco was really knowledgeable and gave great recommendations. The Lime+Mint soft drink was really delicious, as was all of the food we ordered. 10/10 would recommend

my favorite flat iron location! very chilled atmosphere and thoughtful interior. not to mention the always delicious flat iron steak and delicious sides. lovely staff as well.

Went here recently for my birthday and it ticked all the boxes. Dimitra served us with enthusiasm and made us feel very welcome, 10/10 service! She even topped up our beef dripping popcorn without hesitation and upon learning it was my birthday (my girlfriend outed me haha) served us an extra portion of their complimentary ice cream. Can't fault her at all. We were briefly served by a few others who also seemed very friendly but sadly don't have their names. As for the food, I have been to flat iron several times and have personally never been disappointed. I ask for medium rare each time and am always happy! We ordered a few sides and were plenty satisfied with those too. I haven't branched out as far as drinks are concerned but there was a tasty one with sherbet in 🤠 We did have to wait 40 mins but this is to be expected considering we didn't book and the place was so busy. It's good to be aware of this as we saw a couple visibly disgruntled people - book if you don't want to risk a wait. All in all one of my favourite places to get food and if it's your birthday don't be afraid to order an extra steak 😀

Excellent restaurant and very friendly and welcoming staff with the French.

This place was soooooo good. Tried to get in the one on Covent Garden but no luck. Steak was melt in the mouth and got a free icecream for desert. Atmosphere was lovely. Will defo return to this one

Go and treat yourself to a beautiful piece of meat, prepared masterfully. The service is attentive and quick. We had our steak with a nice red wine.

Went during lunch time and the host was friendly and funny. Really good steak house in general.

A steak restaurant with several branches. An excellent steak, soft and soaked in butter, a delicacy in the mouth. The toppings are excellent, we ordered mashed potatoes, a green salad and a delicious eggplant. After receiving the bill, each diner is served homemade ice cream with a waffle baked on the spot, excellent vanilla ice cream with caramel. A perfect ending to a delicious meal, definitely not to miss the restaurant!

Best. Steak. Ever. Not kidding. Also the staff were incredibly kinds to me and my son. We even got a little cleaver and home made ice cream at the end. We hopped on a train from The Netherlands to eat here. Worth it!

Had a brilliant time here tonight. Rocco, our server was really friendly and knowledgeable. Alessandro delivered our food really quickly and was also very chatty. Would recommend.

Visited this branch of Flatiron in April 2025 as a catch up with friends. We did manage to book 2 days in advance but there looked like loads of spaces for walk in. The great thing about flat iron is you get a great consistent experience every branch, it’s casual and has a good atmosphere. The flat iron steaks are always cooked to perfection and the sides are delicious. The sides are good to share, sauce is an individual portion size. There are good choices for types of steaks with the specials but I always enjoy the flat iron. The steak is on the smaller side, one of my friends and two order two steaks. I would say it’s somewhere you come for a lighter dinner or lunch. The free popcorn and the ice cream are a nice touch.

Were at peace all around. Service was good and price performance was top for London All the little things like popcorn, water and ice cream made things perfect for us. Of course the steaks aren't huge for £15, but the side dishes make up for it well

This particular location doesn't accept reservations for a table for one.

Exactly what we needed with my friend ! Quick and efficient service. The team is very friendly and made us feel really welcome !

it was alright not my cup of tea if you like a cheap steak then you will like this however it wasn’t for me

Food was just naff, definitely Instagramable (on average), though in your mouth it's miserable and in your belly it's tiny. Our steaks were not properly searred. My partners had not been seasoned. The service is fine, it's just textbook fast food service: in, order, out. Drinks arrived after food. Atmosphere is great if you live in a cave... Low ceilings make for a raucous dining experience. All in all it's fine, but you're talking five guys fine... And they don't add 12.5% service charge.

Beautiful place. Slow service. Steak was cooked incorrectly, asked for Medium Rare and was served something closer to Well Done. Fries were very meh and the chili aioli had almost no flavor. Good price, £15 for a steak but not worth it if they're going to cook it incorrectly. I came on a not busy Thursday afternoon and was told I couldn't sit outside and was then placed on a barstool at the window with no place to rest my legs and had a very small table to eat at. I would recommend for the atmosphere and experience but wouldn't come back.

Great service, great food, great venue. Every dish & drink was delicious. We had the flat iron steak, fries, creamed spinach, truffle mac&cheese and aubergine. Generous portions. Rhubarb soda was amazing! Nice booths to sit in. Good for groups. Free popcorn served before meal and free ice-cream served after you pay. Very nice to get free things these days :) Reasonable prices. 12.5% service charge. Highly recommended.

Very nice atmosphere! Great food

Had such a great experience at Flat Iron the moment we walked in, Iskren was super polite and welcoming, which made all the difference. The service was spot on—friendly, attentive, and just the right balance of helpful without being overbearing.The food, as always, was amazing. Definitely one of my go-to spots, and I’ll be back for sure!

Iskren was amazing. Great service

Is keen was welcoming. Great food

So good, the mash is a must-try

The food was truly excellent! The triple cheese was a real treat for me! The waitress assigned to our table was really kind. She made an effort to speak softly so we could communicate in English without difficulty.

Unbelievable kindness and great service. Definitely the best in the UK.

Very good atmosphere, the service was impeccable and the food really good!

The food was reasonably good. We left upset because they didn't even give us a second to check the bill, which they were eager to clear. We paid the optional tip (about six pounds), which we would have considered whether or not to give, and how much, had we been given the chance. It was awkward.

We arrived on Sunday evening as a party of 6 hoping to be able to be accommodated for Dinner. The front of house staff were very friendly and managed to find us a great table. The food was fantastic and the chips were delicious as was the steak. Service was quick and efficient. I will definitely be going back.

Very tasty steak and side dishes! The service is very nice. You get a bottle of water, popcorn and ice cream for free. We had a great stay and can only recommend the restaurant. The experience is something special. Above all, the ice cream at the end was very tasty. Thank you for everything! Unfortunately the air conditioning in the basement was a bit too strong and cold. (Visit in March 2025)

A very successful meal. Starting with the very appealing ambience, through great service, to the food. The concept is great and the steak was so delicious. We'll be back.

Fantastic meal - perfectly cooked meat to how I'd asked, the sides I could have eaten a whole bowl of (even my partner who's not the biggest fan of greens went back for seconds on the spinach) and the passion fruit cocktail we amazing. If I weren't so full I'd have wanted seconds.

Booking is a must at Flat Iron as they get super busy. Very simple menu, but what's more simple than a great steak with delicious accompaniments? I love the beef dripping popcorn to begin & the vanilla cone to go on the way out - both included with the menu. Amazing value, brilliant Team & service & fun atmosphere, the perfect evening bite when in London for a night. Highly recommended!

Got the steak, mash and mac-n-cheese. Was all very delicious, will be coming back!

Amazing place and service especially Mathias

Classy flat iron dish, in general ok

amazing experience, great food !! mathias was super nice !!

Had a beautiful Cornish pichana. Mac and cheese 10/10 as usual.

As always, Flat Iron is the best!! Ordered 2 medium rare Flat Iron Steaks, with chips and the aubergine dish for sides. I tried the aubergine for the first time - definitely will be getting that from now on 🤭. Saved the ice cream token for the future.

Vadim was our server and he was beyond expectations, giving helpful advice and tips to make a meal better, smiling. Will come again.

The meat and beer are delicious for the price! It was a ray of light among the disappointing British food :)

Attentive staff. Doo value food. Good prices. Calm ladiback atmosphere. No pretense

The steak with the highest CP value in the UK. The tenderness of the meat is fresh and the side dishes are all delicious in high-end restaurants. The ice cream after the meal is very delicious.

Very charming restaurant and good food. The service was very friendly. The fries could use more salt. We'll be back!

I recently dined at Flat Iron Kings Cross and had a memorable experience. The restaurant's interior is stylish and spacious, featuring bare-brick walls, reclaimed wooden furniture, and ambient lighting that creates a cozy atmosphere.

The restaurant offers a very nice and pleasant atmosphere. It is stylishly furnished and the staff is very friendly and accommodating. We both had the flat iron steak with fries. It was perfectly fried and super tasty. We'd love to come back!

Great steakhouse with very reasonable prices for London. The burger was especially good. The complementary ice creams at the end are a nice touch.

This is so unique in my list, ambiance is so good, especially the team is very kind and helpful..

"Great dining experience ! The dishes was prepared to perfection, and the service was attentive and friendly. Cozy atmosphere. Will definitely return!"

If you're a meat lover, Flat Iron is an absolute must-visit. It truly does not disappoint. I tried the Picanha, and it was delicious!! The ambiance is warm and welcoming, and the staff is exceptionally friendly and always ensuring that guests feel comfortable and well cared for.

Steak is mostly the original menu (there are a couple of options for Wagyu and other cuts), and we ordered eggplant gratin to share. The meat itself was well seasoned, but I think it would be good to order a sauce or two to share. The gratin was a little salty.

Very good food. Friendly staff!

Can’t review the food because I was not able to order. Service is absolute rubbish. Good luck getting anything to eat here

I used to be a big fan of Flat Iron and would visit regularly, but unfortunately, my last few experiences have been quite disappointing. The meat has become excessively oily, which takes away from the flavor, and overall, the quality has noticeably declined. It’s disappointing to see such a drop in standards, especially since this was once one of my go-to spots. Sadly, after multiple visits with the same issues, I don’t think I’ll be coming back anytime soon.

We ate the most typical dish of the place, their Steak accompanied by a portion, it is an acceptable meat at a good price. Nice touch of popcorn upon arrival and ice cream after paying.

This was just the best steak Ive ever had! The server, a young man named Rocco knew exactly everything I asked about. I wanted to try the Wagyu beef and by his recommendation I selected the hangar steak. The flavor is still on my tounge, a day later. And the mash was amazing too, I would go there just for the mash! My favourite steak house in London, by a mile!

This has to be one of the best steaks I've ever had! The service was phenomenal!!

Delicious food, amazing service, great atmosphere and free popcorn & ice-cream. Had a great time, highly recommend.

We had a mixed experience with our service initially but Dominique turned it all around and was great! Good food too.

All round excellent and Natalia was a great host :)

Super service and food even better ! Will defo be back !

Food was lovely - beautifully cooked. Rocco was brilliant, really knew his stuff and recommended an incredible steak.

A restaurant with a wonderful atmosphere and a very juicy and perfectly cooked steak!! On top of that, the detail of the popcorn when you arrive and the ice cream when you leave seems wonderful to me to top off a good dinner!! 100% recommended!!

A cost-effective steakhouse!!😁 It was actually neater to eat with salt rather than ordering sauce! Above all, the best ice cream restaurant~^^

Just walked out of Flat Iron, and I’m absolutely happy! This place is a true paradise for steak lovers. The meat was perfect—tender, juicy, and full of flavor. I paired it with mashed potatoes and creamy spinach, and it was simply incredible! The atmosphere at Flat Iron is very cozy, with a stylish interior that’s elegant but not over the top. The service is top-notch—staff are attentive, friendly, and efficient, even when the place is busy. And the best part? The price-to-quality ratio is amazing. You’d have to pay much more for a steak of this quality elsewhere. If you love a good steak, this is the place to be! I’m already planning my next visit. ♥️♥️♥️

First time at flat iron, great food and service. Free ice cream was a nice treat

The steaks are delicious and the staff are friendly. I plan to visit again.

Be sure to try the truffle macaroni cheese

This place never disappoints. Usually go for late lunch...early evening then there is usually no wait. Treated ourselves to the wagu flat iron which was delicious with their fab chips and creamed spinach...it's just the best for a treat. Thank you to our waitress for my special ice cream.

I had dinner there, and the food was so good. I liked the apple mocktail

It was a great experience - the food was amazing - perfectly grilled steak, various and incredibly delicious sides - can’t say which one I loved the most because they were all sooo tasty - the truffle macaroni cheese, the crispy bone marrow garlic mash, and the roast aubergine! And the ice cream at the end was cherry on the cake:) The staff were brilliant as well!

Everything was perfect! The food was delicious - loved the steak and the chips. The ice cream at the end was a nice bonus. The staff were lovely and welcoming. Very warm and cozy atmosphere!

I had such high hopes , but it was disappointing. Nice sides, but I asked for medium rare and got completely raw steak in the middle for the wagu. It was also too salty and just not enjoyable :( rude staff too!

It was really delicious. Until the last ice cream. This is the first time I've eaten something so delicious in England.

I went to have lunch before boarding the Eurostar from London to Paris. We recommend that you make a reservation in advance. I was thinking of leaving my suitcase in the storage room, but the staff kindly put it in a place where I could see it. Since we are a family of 5, we ordered a variety of meats, and they were all good. (Personally, I liked the rare version a little better. I also ordered spinach, stir-fried eggplant, and macaroni as side dishes, but the portions were so much larger than expected that the 5 of us couldn't eat them all.) When you finish your meal, the table is cleared, payment is completed at your seat, and a miniature knife is given to you. You can take it with you or replace it with ice cream. We ate it with ice cream and it tasted good and was worth at least 5 pounds. I am ending my trip to London on a good note~

The tastiest and best value steak in London. Always a winner with the family and makes a nice change from the usual chicken

Great value and the tastiest steak in London. Always a winner in our family and makes a change from all that chicken

Steak is so-so, service is pretty good

Booked in here with my partner for my birthday, staff were very polite and helpful, they supply you with free water and beef infused popcorn while you order, my partner had the Iron Flat Steak while I had the Truffle Burger, my partner adored her steak, while I've admittedly had better burgers at cheaper prices, that doesn't make the food itself bad by any stretch, just lead to a minor disappointment. Afterwards, unknown to either of us, the staff brought out some ice-cream in a glass flute/bowl with choc shavings and a candle in it, wishing me a happy birthday, which was just a lovely little addition to the evening, we were then given tokens for an ice-cream on the way out, all of this was free of charge as well, we ended up buying ourselves the little butcher knifes that the sell to support them. Would easily go again next time I'm in London and might try a steak myself after how good my partner said it was.

Another wonderful visit to the Flat Iron chain. We went for two steaks that were cooked perfectly and were delicious! No sauce needed as it was tasty on its own. The burger was incredible! Three cheese burger with pickles was very tasty. The mash to go with the steak was super yummy and a different taste to the regular mash. The touch of providing popcorn before the meal and the ice cream afterwards is very thoughtful. This location was not ideal for us but it was the only one that had availability on Sat for dinner at a reasonable time. It is very popular so I would recommend booking in advance. We booked a week or so in advance. We arrived 5 minutes before our booking time and we had to wait for our table to be ready for a bit. But it was worth the wait. Restaurant was clean and cozy.

I'm gonna be as honest as I can be... Service... really good!! Nice deco which makes you feel very comfortable, however... about food,I ordered one of the two specials they had on the board which was 'wagyu skirt' £23 200gm cos the other one was sold out.I was very excited about trying for the first time this kind of Beef,they brought it very quickly as it looked to me they have plenty of staff in the kitchen as I was sitting right next to it. First bite I had didn't really impressed me at all because the beef wasn't tender at all and flavour wise nothing to write home about,Soon after which I believe was a person in charge asked me how was it and I said to her ...let me be honest,I was expecting the beef to be much more tender as is a chef's recommendation,she immediately apologized about it and she took it back to the kitchen to replace it for another one after having a word with one of the chefs.Again, very quickly another one arrived to my table which was at least more tender but similar flavour, maybe I had too high expectations about this place after seeing some impressive reviews on social media.Will I come back?...I don't think so,I think there are better steak houses out there .Something it's funny to me it's about people mentioning how good is to have some popcorn on the table while you're waiting for your food,as it was a really great treat from them, that's not relevant to me as well as a free ice cream they offered you at the end of the dinner which has to be taken away.It's something really appreciated don't get me wrong but the food your having it's the most important thing.Another thing I forgot to say it's about the very few choices you have on the menu which makes you expect much better quality every single dish you order.

The food was excellent and so was the service.

Flat Iron Kings Cross is a great spot for steak lovers. The food is simple but delicious.The service is friendly, and the atmosphere is cozy, making it a nice place to relax. Prices are reasonable for the quality, though it can get busy, so expect a bit of a wait. Overall, a solid choice for a tasty and satisfying meal.

Great atmosphere, lovely service.

We had an amazing experience ad this restaurant. The staff truly makes you feel at home!! Christian listened to our needs and ensured we had the best experience. The food is exceptional, each dish is carefully prepared, and the ambiance is cozy and welcoming!

Relaxed, cool atmosphere, intimate space but still has plenty of room for larger groups. A haven from the chaos of King’s Cross. Food was delicious, service was really friendly and attentive. We really appreciated the touch of having a free icecream at the end despite it being sub zero temperatures outside!

Great steak and atmosphere, friendly staff and quick service.