Cheap places to eat out in London

Zeret Kitchen in Camberwell for Eritrean/Ethiopian food

Is that a good one .... have been seeking out a good Ethiopian in London for a long time only one I've noticed is the one near Oval Tube
bit far from home but Ethiopian food is soooo delicious it's got to be worth a bash

Asmara on cold harbour lane at the Brixton end is really excellent too, very cheap and you don't get plates or cuttlery just loads of pancakes!