Macaroni And Cheese Casserole
["1 box macaroni (12 oz. or less)", "8 to 12 oz. Cheddar cheese", "1 small chopped onion", "1 c. mayonnaise", "4 oz. jar mushrooms, drained", "1 can cream of mushroom soup", "1 small jar pimento"]
["Cook macaroni; combine onion, mayonnaise, mushrooms and mushroom soup.", "Mix well.", "Layer macaroni and soup mixture. Sprinkle cheese and pimento.", "Bake at 300\u00b0 for 25 minutes."]
["macaroni", "Cheddar cheese", "onion", "mayonnaise", "mushrooms", "cream of mushroom soup", "pimento"]