Crock Pot Beef Stroganoff

Layer in your slow cooker:
2 lbs beef stew meat, raw ( put the meat in frozen)
2 cans cream of mushroom soup
1-2 T Worcestershire sauce
1 onion, diced

Cook on low all day.  Right before serving add:
16 oz sour cream, mix well.

Serve over:
1 lbs egg noodles, cooked and drained -OR-
cooked white rice

***Sliced mushrooms can be added with the sour cream right before serving.  Celery can be added in the beginning  if desired***