Tator Tot Casserole

2 lbs. hamburger
1/4 cup chopped onion
1 can cream of chicken or cream of mushroom soup

Place the raw hamburger in the bottom of a casserole dish (be sure to spray the dish with a vegetable spray for easy clean up). Sprinkle the onion over the hamburger then spoon the soup over all of it. Place a layer of tater tots on top. Bake at 350° uncovered for 1 hour.