If visiting Turkey - besides the kebabs and pide:
-- fasulye yemegi (flat beans in tomato sauce) with pilaf
-- gozleme (flat bread with spinach, sometimes feta and meat fillings)
-- borek (phyllo pastry with spinach and feta fillings)
-- manti (small, pyramid-shaped pasta in a soup or gravy)
-- balik ekmek - sandwich with grilled fish (near Galata Bridge in Istanbul)
-- kumpir - fast food; baked potato with a shitload of sweet/savoury fillings/toppings of your choice (Istanbul)
-- breakfast: yogurt with walnuts, figs, honey and ground cinnamon (Kars in the northeast is known for their honey)
This site should give you more ideas :-
http://www.turkishcookbook.com/