Janeth's Funeral Potatoes

1 1/2 packages tater tots (the flat kind work best)
1 large, family-sized cream of mushroom condensed soup
1 lb cooked bacon, crumbled
1 container sour cream
1 small onion, chopped finely
2 c grated cheddar cheese

Place tater tots in a 9x13 pan.   In a bowl, mix mushroom soup, bacon, onion and sour cream thoroughly.  Spread evenly over tater tots and sprinkle with cheddar cheese.  Cover with aluminum foil.  Bake for 1 hour at 350 degrees, or until hot in middle.  Take off aluminum foil and bake 10 minutes more to crisp cheese.

This can be made the night before and kept in the refrigerator until ready to bake.