Macaroni And Cheese Casserole
["1 (8 oz.) box macaroni", "1 can cream of mushroom soup", "1/2 c. mayonnaise", "1 small jar chopped pimentos", "1/4 c. chopped onion", "1 lb. cheese, grated", "3 Tbsp. margarine"]
["Cook and drain macaroni.", "Add all other ingredients.", "Place in buttered casserole.", "Top with crumbled Ritz crackers and dots of butter.", "Bake for 25 or 30 minutes in 325\u00b0 to 350\u00b0 oven."]
["macaroni", "cream of mushroom soup", "mayonnaise", "pimentos", "onion", "cheese", "margarine"]