Burgers, Fries, Doughnuts, Pies, Cakes fill me up. Vegetables and Fruits by themselves, not so much. I love eating them, but not filling. I like making vegetable Casseroles and such. That is a filling way to eat Vegetables. Also Fruit Crisps and Fruit Pies.
Watermelon can fill you up though, but its just the water doing it.