Leftover Ham Casserole

2 cups ham, chopped
1 cup celery, chopped
1 small onion, chopped
1/2 cup milk
1 can cream of mushroom soup
3 cups potato chips, crushed
Grated cheese

Mix celery, ham, and onion together; put 1/2 of this mixture in an
ungreased baking dish.
Spoon 1/2 can of soup and 1/4 cup milk over the meat mixture
and sprinkle 1 1/2 cups crushed chips over all. Repeat
layers one more time and sprinkle cheese on top.
Bake 30 minutes at 350 degrees.