Skillet Rice

Ingredients

• 1/4 cup fat
• 1 medium onion, thinly sliced
• 1/2 medium green pepper, chopped
• 1/2 pound ground beef
• 1 cup raw rice
• 2 small cans tomato sauce
• 1 3/4 cup hot water
• 1 teaspoon prepared mustard
• 1 teaspoon salt
• 1 dash pepper