Potato Casserole
["8 medium potatoes, diced", "1 can cream of mushroom soup", "1 onion, diced", "1/2 c. water", "1/2 c. grated cheese", "1/2 stick margarine", "salt and pepper to taste"]
["Boil potatoes for about 15 minutes.", "Butter casserole dish. Mix ingredients; bake, covered, at 400\u00b0 for about 30 minutes."]
["potatoes", "cream of mushroom soup", "onion", "water", "grated cheese", "margarine", "salt"]