Bacon Tator Tot Bake

2 (10 3/4 ounce) cans condensed cream of mushroom soup, undiluted
1 1⁄3 cups sour cream
1 large onion, chopped
1 lb sliced bacon, cooked and crumbled
1 (32 ounce) package frozen tater tots

In a large bowl, combine soup, sour cream and onion. Add the bacon and Tater Tots; stir until combined.
Transfer to a greased 13-in. x 9-in. x 2-in. baking dish.
Cover and bake at 350° for 50 minutes.
Uncover and bake 8-10 minutes longer or until golden brown.