Crock Pot Spanish Rice

2 lbs. ground chuck or beef
1 med. onion, chopped
1 green pepper, chopped
1 (28 oz.) can stewed tomatoes
1 (16 oz.) can tomato sauce
1 1/2 c. water
2 1/2 tsp. chili powder (or to taste)
2 tsp. seasoned salt (to taste)
2 tbsp. Worcestershire sauce
2 c. raw rice, converted
3 stalks celery, chopped
grated Monterey Jack or Cheddar cheese (optional)

Brown beef in skillet and drain off fat. Put all ingredients in crock pot. Stir thoroughly. Cover and cook on Low 6 to 8 hours or on High 3 hours. Sprinkle with grated cheese before serving, if desired.