Cheddar Potato Casserole
["1 c. sour cream", "1 can cream of mushroom soup (10 3/4 oz.)", "1 can milk (use soup can)", "6 potatoes, cubed and boiled", "1 onion, diced", "1/4 c. melted margarine", "2 c. shredded Cheddar cheese", "1/4 c. crunched corn flakes"]
["In a separate bowl, mix soup, milk, sour cream and onion.", "In greased 13 x 9-inch baking dish, layer cooked potatoes first, then 1/2 cheese, then potatoes. Pour soup mixture over layers; top with the rest of the cheese, crunched up corn flakes and melted butter. Bake at 350\u00b0 for 40 to 50 minutes or until bubbling in the middle."]
["sour cream", "cream of mushroom soup", "milk", "potatoes", "onion", "margarine", "Cheddar cheese", "corn flakes"]