Crockpot Pizza Soup

Crockpot Pizza Soup

1-1/4 cups sliced fresh mushrooms
1/2 cup finely chopped onion
1 Tbsp. olive oil
2 cups water
1 can (18 ounces) pizza sauce
1 cup chopped pepperoni
1 cup chopped fresh tomatoes or 1 can stewed tomatoes
1/2 cup cooked Italian sausage, out of casing and crumbled
1/4 tsp. Italian seasonings (oregano, parsley, basil)
1/4 cup grated parmesan cheese
shredded Mozzarella cheese

In large saucepan saute onions and mushrooms in olive oil 2- 3 minutes, or until tender. Add everything except cheese to crockpot. Simmer on LOW 6-8 hours or HIGH 3-4 hours. Before serving add parmesan cheese and stir in. Garnish with mozzarella.