Combine ground beef and eggplant mixture together and cook for about 15 min. over med. heat. Add spaghetti sauce to eggplant and ground beef mixture. Mix well.
Cook rotini noodles as directed on box. Drain, but do not rinse. Add the Parmesan cheese and mix well once more. Pour combined mixture into a 13 x 9-in. baking pan. Bake at 350 degrees F for 1 hr..
After 1 hr., remove from oven and add the mozzarella cheese. Bake just until cheese is melted.