1 chopped onion
2 lb. ground beef
1 bag Tater Tots
1 can cream of celery soup
small jar Cheez Whiz
1/2 c. sour cream
Parmesan cheese

Brown ground beef and onion. Drain grease. Place 1/2 bag Tater Tots in bottom of greased pan. Mix beef mixture, soup, Cheez Whiz and sour cream. Place this mixture on top of hash browns. Cover mixture with remaining Tater Tots. Top with Parmesan cheese.

Bake at 375°F for 35 to 40 minutes.