"Stuffed aubergines." Aubergines (US: eggplants), often stuffed with minced (US: ground) beef or veal, cheese and onions or rice with chopped peppers and other vegetables, fish or a mixture of chopped chorizo and bread soaked in milk bound with egg.
The way you like it. For instance, seeing seafood "al gusto" on a menu, you might be able to choose whether to have it fried with garlic or served in a tomato sauce, or you could choose whether to have eggs scrambled or fried, your fish poached or grilled and so on.