Awesome! I forgot to mention there's a Dishoom round the corner from all the Brick Lane stuff, it's all based on Bombay style food. They're open for breakfast too, can highly recommend the breakfast keema, best cure for a hangover I've ever found.

Also, if you're interested in the whole salt beef sandwich thing, The Brass Rail at Selfridges is a fucking institution. Pro tip: if you see a queue but there's a few people hanging back, it means they're just about to bring out a fresh load of brisket. Hold off until those folks swoop in.

Edit: actually you know what, have some more recommendations.

Literally any Hawksmoor, there are a few in London, they're always in art deco spaces, but in unusual places - Air Street is in the arches over some of the biggest shops in London, just off Piccadilly circus. If you want to know what a proper roast looks like, go here. Beef cooked over charcoal, charged by weight.

The Quality Chop House - this is an old favourite. Chop houses used to be all over London, they were a kind of after work eatery for your average businessman. Drop in after work, hang your hat by the door, have a beer and a chop, at some point later remember you have family, stagger home etc. As far as I know, this is the only chop house that still exists that has the original Victorian setup - very, very narrow benches and extremely thin tables (eat up, then fuck off!), and the folks who took it on have maintained the tradition of cooking their chops over coals. I mention this specifically because they have "mince on toast" on the menu which is what the OOP is shitting on. It's a very traditional dinner and this would be the best place to try it outside of home cooking. Also, their confit potatoes are incredible. Small plates, expect to share, if you're going there at the weekend it will be empty because nobody actually lives in Farringdon. They also do pretty decent set menus on weekdays and there is a roast on Sundays!

The smoked salmon is good too, but it's more of a normal sandwich. The salt beef is a bit more obscene, like you need a lie down after.