Brown ground beef, peppers, and onions in a large saucepan. Add two jars of Barilla sauce, stir, and set aside. Brown sausage links in a skillet for five minutes, then add 1/2 cup of water and simmer for 12 minutes until fully cooked. Slice links into small pieces and stir into sauce. Boil pasta according to package directions. Stir cooked pasta into the sauce, then place in a 4 quart baking pan. Shred mozzarella cheese and sprinkle a layer on top. Cover with foil and bake at 375 F for 1 hour, removing the foil for the last 15 minutes of baking time.