Spanish Rice - cooking recipe

Ingredients

1 medium onion, sliced
1/2 c. chopped green pepper
1/2 lb. hamburger
1 c. raw rice (not instant)
1 tsp. salt
1/2 tsp. ground pepper
16 oz. tomato sauce
3/4 c. hot water
1 tsp. prepared mustard

Preparation

Brown together onion, green pepper, hamburger and rice.
Add salt, pepper, tomato sauce, water and mustard.
Bring mixture to a boil, then simmer for 25 minutes.