Heat oil in a large skillet over medium heat. Add chicken and sausage links and cook, stirring occasionally, for 5-6 minutes. Add onion, green pepper, and garlic. Continue cooking and stirring until meat is completely cooked through and vegetables are tender, about 6-7 minutes. Add rosemary, cayenne pepper, and tomatoes. Stir well to combine and bring mixture to a simmer. Stir in half and haf and remove mixture from heat. Add cooked pasta and stir well to combine. Transfer mixture to a greased 2 1/2 quart baking dish. Sprinkle with mozzarella and Romano cheeses. Bake at 350 degrees for 15-20 minutes or until heated through. Serve immediately.