Mac And Cheese Casserole
["8 oz. pkg. cooked macaroni", "1 lb. sharp Cheddar cheese", "1 c. mayo", "1 jar pimento", "1/2 chopped onion", "1 can cream of mushroom soup", "1 can sliced water chestnuts"]
["Combine all ingredients and top with crumbled Ritz crackers. Bake at 325\u00b0 for 40 minutes."]
["macaroni", "Cheddar cheese", "mayo", "pimento", "onion", "cream of mushroom soup", "water chestnuts"]