The best restaurants serving American food in Barnhill Brent London

It's our local and my family love the food. The service is half and half;sometimes we get a friendly service, and sometimes we get an overworked and underpaid member of staff judging by his attitude. But last time took the biscuit when the guy at the counter (goodness knows why) completely ignored me and served another customer before me. The customer apologised as he didnt realise I wasnt being served though I'd stood there in front of staff in an empty takeaway for about 10 minutes. And when I did finally get served the guy told me they didnt have any large pizzas left or any peri peri chips. Dont they just roll the dough out a bit more to make it larger? I dunno, it was all a bit weird to say the least. Shame really as the food is tasty, although bit pricey now prices have crept up.