Panic Button Casserole
["1 (10 1/2) can cream of mushroom soup", "1 c. milk", "1 c. uncooked macaroni", "3 Tbsp. chopped onion", "1/4 lb. dried beef, cut into bite-sized pieces", "1 c. finely chopped cheese"]
["Stir soup to creamy consistency; add remaining ingredients except cheese.", "Turn into buttered 1 1/2-quart baking dish. Sprinkle cheese on top.", "Cover; refrigerate for at least 3 hours or overnight.", "Uncover.", "Bake for 1 hour at 350\u00b0."]
["cream of mushroom soup", "milk", "macaroni", "onion", "beef", "cheese"]