2 lbs. ground beef
⅓ cup canned mushroom soup
1 egg
1 small onion, finely chopped
¼ cup bread crumbs

Mix and form into patties. 

1. Bake at 425° for 30 minutes. 

2. Mix remaining two thirds can of soup with one third cup water and pour over patties. 

3. Bake 10 minutes longer.