You’ll Need:1 pound extra wide noodles, cooked 16 ounces Cheese Whiz 8 ounces Colby cheese, grated 1 cup minus 2 tablespoons butter or margarine 1 or 2 large onions, sliced Enough prepared instant mashed potatoes for 12 servings (or use leftover potatoes) Topping 1/2 cup Parmesan cheese Parsley flakes Directions