58 Broadway Market
It's hard to walk down Broadway Market and resist the culinary gravity of a Turkish lady industriously rolling out two-foot wide crepes and packing them with all manner of delicious fillings (cheese & spinach, potato, etc.).
Called gözleme, the hand-made pastry is more than enough for a solid lunch, though you should probably get yourself a nice salad to even out the food karma.
Only £2.50, so skint Londoners in Hackney, you need to come by and get some of this in you post-haste!