The Quesadilla. I don’t think there are many other things as good and simple. If you want, all it takes is cheese and tortillas. What kind of cheese? Doesn’t matter. (I like cheddar.) What kind of tortillas? Doesn’t matter. (I like corn.) And on top? You name it: salsa, sour cream, green onions, hot sauce, peanut butter, tic-tacs…