2 c. uncooked macaroni
1/3 c. mayonnaise or salad dressing
1 (20 1/2 oz.) can condensed cream of mushroom soup
1/2 c. milk
8 oz. cheddar cheese, shredded

Cook macaroni according to package directions; drain. Combine all ingredients. Pour into a 1-quart casserole dish (top with additional cheese if desired). Bake uncovered at 400 degrees for 20-25 minutes. Serves 4-6.