Brown beef and sausage with chopped onion, green pepper and garlic; drain excess fat.
Stir in jarred salsa, chili beans (with sauce), drained kidney beans, pizza sauce, pepperoni slices, water, chili powder, salt and pepper. Bring to a boil, then reduce heat and simmer ~20 minutes covered until heated through.
Serve each bowl topped with shredded mozzarella cheese..