Ingredients:8 oz. macaroni, cooked1lb. cheddar cheese, grated1/2 cup chopped onions, sauteed1 can sliced mushrooms1 small jar chopped pimento1 can cream of mushroom soup1 cup mayonnaise1 cup milk1/2 stick of butterMix cooked macaroni, cheese, onions, mushrooms and pimento. Mix soup and mayonnaise together and add to macaroni. Mix in the milk. Place mixture in baking dish. Dot with butter and bake at 350 degrees for 45-50 minutes.