In a dutch oven or heavy saucepan, brown sausage, green pepper and onion; drain. Add tomatoes, tomato sauce, water and garlic powder. Bring to a boil, then reduce heat, cover and simmer 15 minutes. Add soup mix; simmer, covered 5-7 minutes longer . May be frozen at this stage. Sprinle each serving with grated Mozzarella cheese.
