Sweet and Sour Meatballs

Combine well for meatballs:
1 lb lean ground beef
1/2 cup rolled oats
1 egg, slightly beaten
1/3 cup onion, finely chopped
3/4 tsp salt
dash of pepper
1 tsp Worcestershire sauce
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Sauce - combine in saucepan, heat until sugar is dissolved:
1 cup brown sugar
1/2 cup vinegar
2 tsp prepared mustard
1/2 cup BBQ sauce
1 small can pineapple tidbits (optional)

Directions:
Form meat mixture into 1 inch balls. Place in casserole dish, single layer. Pour sauce evenly over meatballs and bake at 350 for 30 minutes. Serve over rice.