I doubt very much if Britain's best dish was considered to be curried goat... lol ... where did that one come from ? It's more likely to be a mild chicken tikka or some other pretend curry haha...
My favourite dish has to be one of the following:-
Tarka Dal
Cheese & Potato Pie (my own !!!!!)
Veggie Curry (again my own hehe)
A real italian pizza cooked in a proper pizza oven...
Nesta's Vegetable Stew (now THAT is fantastic...hehe)