From The Ultimate Soup Cookbook
1 teaspoon vegetable oil
1 1/4 cups sliced fresh mushrooms
1/2 cup finely chopped onion
1 can (15 oz) pizza sauce
1 cup chopped pepperoni
1 cup chopped seeded fresh tomatoes
1/2 cup cooked Italian sausage
1/4 teaspoon Italian seasoning
1/4 cup grated Parmesan cheese
shredded mozzarella cheese
Heat oil in a large saucepan over medium h eat. Add mushrooms and onion and saute until tender, about three minutes. Add 2 cups water, pizza sauce, pepperoni, tomatoes, sausage, and Italian seasoning. Bring to boil, then reduce heat, cover, and simmer, stirring occasionally, 20 minutes. Before serving, stir in Parmesan and garnish with mozzarella.
*I used a 14 1/2 ounce can of diced tomatoes undrained because I wasn't about to pay what they wanted for the fresh ones.