1 lb. ground beef
1 lg. onion, chopped
1 (8 oz.) pkg. cream cheese (room temp.)
1 c. whole kernel corn
1 c. cream of mushroom soup
Frozen onion rings

Brown onions and ground beef. Drain. Add cream cheese, corn and soup. Place in casserole. Top with frozen onion rings. Bake 350 degrees for one hour.