Ham and Swiss Casserole

1 8oz. package wide egg noodles, cooked and drained, undercook if freezing
2 cups ham, cubed
2 cups Swiss cheese, shredded
1 can cream of mushroom soup
1 cup sour cream

*In 9x13 aluminum pan, or smaller if dividing layer noodles, ham and cheese; mix lightly. In separate bowl mix the soup and sour cream together. Pour soup mixture over the other ingredients in pan. Cover with foil and freeze. When ready to eat, thaw and bake at 350 for 45 minutes.