Summer'S Meat And Potato Casserole

Ingredients:
- 1 1/2 c. milk
- 1 large onion
- 2 cans cream of mushroom soup
- 1 container fresh mushrooms (optional)
- 1 1/2 lb. hamburger, cooked with seasonings to taste and drained
- 4 to 5 medium potatoes, peeled, cooked (leave slightly undone) and sliced
- 1 pkg. Velveeta cheese (medium size 2 lb.?)

Directions:
- Combine the soup and the milk and then layer:
- soup mix, cooked potatoes, meat, onion, fresh mushrooms and cheese slices. Bake at 350° for 1 hour.
- Serves many.