Flat Iron Kings Cross in Islington

We had a wonderful steak dinner at this restaurant last night. Everything was great, the steaks, the sides, the cocktails and the wine. But was standout for us was the very courteous and professional service from our waiter Taleb. He made our night extra special and he is certainly a credit to this restaurant. We'll definitely be coming back here. Trevor Wright

Steak amazing, mac and cheese delishious, tallow fried chips aka fries so good, mashed potatoes with crispy bone marrow , yes please. Great friendly service and complimentary ice cream.

Relaxed, simple but tasty menu. A lovely place to meet a friend. Get there early - it was popular!

My cousin and I had been referred Flat Iron and boy oh boy did it deliver! Taleb was very kind and helpful! The food came out quick. The steak was outstanding. The Truffle Mac and cheese was the best mac I have ever had, and the chips were wonderful. Plus, we had their ice cream on the way out the door. Absolutely delicious meal for great value! 10 of 10 recommend!

Friendly service and great food

Came here last Thursday with my friends and wanted to leave a review for our host, Oliver. He was absolutely lovely—so patient with us and incredibly kind throughout the night. He greeted us with the most welcoming smile everytime and made us feel comfortable from the moment we arrived. His friendly attitude and attentive service really added to our experience. Thank you, Oliver, for making our night so enjoyable!

My absolute favorite place in London! The food is amazing (you must get the flat iron steak and truffle mac and cheese), the service is always amazing (especially the host ☺️!), and the atmosphere is so friendly and comforting. You will definitely want to come back!

Cost-effective steak one-menu restaurant

Flat iron is a nice restaurant to grab a quick bite in a cosy restaurant I do really like flat iron. I recently tried the creamed spinach as it’s something I’ve not had before and would defiantly recommend again it goes lovely with steak and the bone marrow mash especially.

Absolutely lived up to the hype. Each of us ordered our own steak—and it was so good, we ended up ordering another to share for the table.

Thank you Kyle! Amazing service and food!

Our server pip was amazing. She was so kind, polite and very attentive to our needs. It was a real pleasure having her serve us.

Love the food , staff is friendly

One of the Must try restaurant in London

The food is good and comes out quickly, it was our first time visiting. However I am gluten free coeliac and mentioned this many times while ordering, when the food came out my friend who had ordered the burger (which doesn’t come with a plate it’s just wrapped up in paper) they had put the burger on my gluten free plate while bringing the food at out so sadly I had to send the food back (cross contamination), which was fine just a bit annoying and another steak came out straight away but wasn’t the medium that I ordered I think it was super rare that someone else had ordered and they had swapped the steaks. Also I felt the manager wasn’t very friendly.

My first time at Flatiron - I didn’t know what to expect and was pleasantly surprised. The limited menu was fine (no starters?) so opted for the default flatiron steak and a few sides - all were great, especially the steak and the truffle Mac & cheese. And the chips. And the wine! Side of peppercorn sauce was a bit small & stingy for £1.50 but that was the only minor complaint from our table of 4. Would I go again? Yes - I’ll try the ribeye next.

Having tried and failed to book we headed over to the restaurant before a show in London, everyone was very welcoming, we went for the Ribeye which was delicious and cooked well. Really enjoyed the little extras like free popcorn and ice cream at the end. Did not dissapoint!

The food was excellent, but the seating was uncomfortable and a minimal choice of sides as well as no option for hot beverages.

I love coming to this restaurant chain. this was the first time at this location and it was highly recommended, upstairs it had more of a pub vibe where you could eat, and when we went down the stairs we entered a very cozy restaurant with an open kitchen. You immediately received water and a bowl of popcorn in advance and the chef personally came to tell us what the menu entailed and what he would recommend. Always go for the chef's favorite and that was the picanha in this case. I had it cooked medium rare on the chef's advice and it was absolutely fantastic. Recommended to go for the mashed potatoes and spinach as side dishes. I enjoyed it immensely and would come back again.

The steak is tender and delicious, and the other side dishes are also delicious. The knife used is really special. I really want to take one home🤣. After you finish the meal and check out, you will be given a small mini kitchen knife, which you can take to the door to exchange for ice cream. It is recommended to book a table in advance!

My pals and I- the “Carnivorous Connoisseurs” as we go by, delight in all things deliciously meaty, and Flat Iron well and truly delivered! A wonderful steak awaits every table; superbly cooked and presented on a whimsical wooden board. The meal itself would’ve been enough, and that wonderful steak upon that playful platform could’ve ticked all our boxes alone...however, what implored me to write this review, and what tipped my experience into an exceptional evening- was the person who presented me with that slab of meat, the ever so lovely Dan! Dan was attentive, friendly, (a bit cheeky) and just an absolute pleasure. He made our evening very special, and despite being amongst friends, I wouldn’t have batted an eye if he pulled up a seat next to us. What an incredible evening with service that went above and beyond our expectations. 10/10 x

Do not come to this branch. They use bad meat (too old maybe) that tastes almost rotten. Staff were nice enough to offer a new steak but we were so disheartened we just refused. Have heard other friend’s experiencing the same thing. Highly do not recommend

Great food, unacceptable service unfortunately. Our waiter was consistently rude to our table, shouting at us, seeing any ask as an annoyance (presumably as we had kids with us) and making us fold up our paper menus with the food rubbish and hand over to him, perhaps as a way of trying to force us off the table. Additionally the lady serving us the food shouted at one of our guests who simply asked for mayo... Not sure what we did to deserve that - the 2 managers who greeted us at entrance and exit were otherwise lovely

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

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

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.

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.

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.

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

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

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.

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

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

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 !

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.

Iskren was amazing. Great service

Is keen was welcoming. Great food

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!

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.

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.

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

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

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.

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

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.

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)

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!

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

Classy flat iron dish, in general ok

Amazing place and service especially Mathias

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

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

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.

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.

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

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

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.

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.

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

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

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!

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.

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.

All round excellent and Natalia was a great host :)

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~^^