Swiss Steak - slow cooker

1 1/2 to 2 lbs round steak
2 Tbsp flour
1 tsp salt
1/8 tsp pepper
2 Tbsp oil
1 (16-oz) can tomatoes, cut up
1 large onion, sliced
1 stalk celery, thinly sliced
1 Tbsp thick bottled steak sauce

Cut steak into serving-sized pieces. Coat with flour, salt and pepper. In large skillet or slow-cooking pot with browning unit, brown meat in oil. Pour off excess fat. In slow-cooking pot, combine meat with tomoatoes, onion, celery and steak sauce, Cver pot and cook on low for 6 to 8 hours or until tender. Thicken juices with additional flour dissolved in a small amount of water, if desired. Makes 5 to 6 servings.