Beef Supper

2 tbsp shortening
2 lbs stewing beef, cut into 1" cubes
2 large onions, sliced
1 cup water
2 large potatoes, pared and thinly sliced
1 can cream of mushroom soup
1 cup sour cream
1 1/4 cup milk
1 tsp salt
1/4 tsp pepper
1 cup shredded cheddar
1 1/4 cup wheaties cereal

Melt shortening in large skillet. Cook and stir meat and onion in shortening until meat is browned and onions are tender. Add water; heat to boiling. Reduce heat, cover and simmer 50 minutes. Heat oven to 350F, pour meat mixture into ungreased 13x9 baking dish. Arrange potatoe slices on meat. Stir together soup, sour cream, milk, salt and pepper; pour over potatoes. Sprinkle with cheese and cereal. Bake uncovered 1 1/2 hours or until potatoes and meat are tender.