Preheat oven to 350°
Brown ground turkey and sausage with onion. Set aside.
Boil water and cook pasta. Set aside.
Combine browned meat mixture, pasta, mushrooms, green pepper, tomato sauce, tomato paste, spices and water in a large bowl. Mix throughly.
Place mixture in a 9x13 pan and bake for 45 minutes to an hour.
After cavatini has baked for 45-1 hour top with shredded mozzarella and pepperoni and bake for an additional 15 minutes.
Take out of the oven and let cool.
Enjoy!