Four Cheese Chicken and Sausage Parmesan Tortellini Casserole

chicken breast

ground Italian sausage (mild or spicy)

vegetable oil

tortellini pasta

About 18 oz pasta sauce (three cheese)

Roma tomatoes

small Vidalia onion

lg garlic cloves

basil leaves

Salt

Red pepper flakes

brown sugar

freshly grated Asiago cheese

freshly grated Parmesan cheese

freshly grated Romano cheese

About 1 cup shredded Mozzarella cheese for top