Meatball Casserole

2 lbs. hamburger
1/2 c. rice, raw
1 t. salt
1/4 t. pepper
onion, chopped fine
Mix together and roll into balls, brown in oven at 375*
3 cans cream of mushroom soup, mixed with 1 1/2 cans water
Slice potatoes, put in bottom of casserole dish, season with salt, pepper and Deverles,
add a layer of sliced onions and some of the soup, put the cooked meatballs on top and add with the rest of the mushroom soup.  Cover.
Cook at 350* for 2 hours or layer in crockpot and cook 6 hours on low.