Barbeque Beef Stew In A Crockpot

* 2 lbs. stew meat * 3 tbsp. oil * 1 c. onion, sliced * 1/2 c. green pepper, chopped * 1 lg. clove garlic * 1/2 tsp. salt * 1/8 tsp. pepper * 2 c. beef stock * 1 can (8 oz.) tomatoes * 1 can (4 oz.) mushrooms * 1/3 c. barbecue sauce * 3 tbsp. cornstarch * 1/4 c. cold water

Saute onion, pepper and garlic in oil. Add salt, pepper, beef stock, tomatoes, mushrooms and barbecue sauce. Cook in slow cooker/Crock Pot on low heat 8-10 hours. Mix cornstarch, cold water and thicken before serving. Serve over hot cooked rice.