Brown sausage, drain fat. Mix with the Spaghetti sauce, mushrooms, tomato juice, onions, Italian seasoning, salt and pepper. Grease 8 6-quart baking pans. Layer half of the noodles, sliced cheese and meat sauce in pans. Repeat layers. Sprinkle shredded cheese equally over each pan. Cover and bake at 350 for 1 hour. Uncover and bake 15 minutes longer or until cheese is melted.