5 lg. potatoes, peeled
1 lg. onion
1 can cream of celery soup
1 can milk
1/2 lb. Velveeta cheese

Slice potatoes thin. Layer onion and potatoes in baking dish and pour soup over layers. Pour milk over all of it. Cover dish with foil or lid and cook until tender at 375 degrees about 1 1/2 hours. Remove from oven. Slice cheese and stir thoroughly into potatoes. Place dish in oven until cheese melts.