Melt 1/2 cup butter and pour over frozen potatoes. Add sour cream, onion, ... Sprinkle over top. Bake at 350 degrees for 1 ... overnight and then baked.
Combine all ingredients except butter ... flakes over all. Bake at 350 degrees for 45 ... casseroles. Serve one and freeze the other. 8 to 10 servings.