-1-2 flour tortilla(s) (depending on whole or half quesadilla)
-1/2 - 2/3 cup of grated cheddar cheese (with cheese I always eyeball it, because everyone likes their own personal amount of cheese)
-1/4 small onion
-1-3 mushroom(s) (depending on how much you like and size)
-1/4 red pepper
-garlic salt
-fresh ground pepper
-red pepper seasoning
-butter