Crock-Pot Beef Stroganoff

1 ½ lb. stew meat cut into bite sized pieces
1 can cream of mushroom soup
1 can cream of celery soup
1 pkg onion soup mix
½ c. sour cream

Combine everything but sour cream in crockpot and cook on low 3-4 hours or until meat is done. Stir in sour cream and serve over noodles, rice, or barley.