Crock pot pizza soup

I found this on a crockpotting website and it was actually really good. I love soups and this one uses fresh veggies. I will definitely make this again.

Ingredients:
1 jar (14 oz) of pizza sauce (I used Ragu but next time I'm going to try a Trader Joes or whole foods sauce - basically an all natural brand to make it a better for you soup)
3 empty jars full of water
1 green bell pepper, seeded and chopped
1/2 red onion, chopped (I used a whole red onion because we love onion)
1 cup sliced mushrooms
1 cup baby tomatoes, cut in quarters (I used 1 can diced tomatoes and didn't drain them)
2 already-cooked Italian sausage (I used chicken Italian sausage)
1 cup sliced pepperoni, sliced in quarters (Hormel turkey pepperoni is labeled gluten free)
8 fresh basil leaves, chopped (or 1/2 T dried)
1 T dried oregano
1/2 to 1/3 cup of dried pasta (if your pasta is tiny, use 1/3 cup. if it's big, do 1/2. I used 1/2 cup Trader Joe's brown rice penne)

shredded mozzarella cheese (to add later)

The Directions.
Use a 5 or 6 quart crockpot for this recipe. Serves 4-6
Wash and prepare veggies. Dump them into the crockpot. Cut up the sausage into small pieces--I sliced, then cut the pieces in fourths. Add to crockpot. Cut up the pepperoni, add it, too. Add basil and oregano. Pour in the pizza sauce, and follow with three empty jars of water.Cover and cook on low for 7-9 hours. Everything in this is already cooked, so you are really only heating through and allowing the flavors to meld.
Thirty minutes before serving, add the dry pasta, and turn to high. My pasta only took 20 minutes to soften quite nicely. Garnish/top with shredded mozzarella cheese.