Brown the ground beef and onion; drain.  In a 9×13 baking dish, add the ground beef mixture and remaining ingredients, except for the tater tots.  Stir well to combine, then layer the tater tots on top.  Bake at 350 degrees for 1 hour, until bubbly.

If using homemade condensed soups, use 1 1/4 cups of condensed soup in place of 1 can of store bought soup.