Time Out says
Forget everything you thought you knew about sandwiches and head to Big Bite, where two Greek sisters are making sandwiches as big as your head. The lines are out the door every day from noon onwards so you can either get there early, do the queuing thang or get there later on and risk a smaller selection of fillings. Our fave is the roast vegetable (pumpkin, potato, eggplant, carrot, tomato and mayo) sambo on brown that's so large even Pavarotti would have had a hard time finishing it. Wash it down with a fizzy ginger.