Even with a food theme, you could break that down into smaller themes...
Latte, Mocha, Coffee, Cocoa
Snickers, Twix, Skittles, Hershey, M&M, Pez, Toffee
Burrito, Taco, Bean, Salsa
Popcorn, Peanut, Cheesecake, Cupcake, Cookie, Yogurt, Crumble, Pepper
Cinnamon, Basil, Honey, Ginger, Garlic, Nutmeg
Vanilla, Rocky Road, Cookie Dough, Chip