In a large skillet, cook beef and onion over medium heat until meat is no longer pink; drain. Stir in the spaghetti sauce, garlic, basil and oregano. Bring to a boil. Reduce heat; cover and simmer for 10 minutes. In a large bowl, combine the spinach, ricotta and 1 cup mozzarella cheese., Spread 1-1/2 cups meat sauce into a greased 13x9-in. baking dish. Top with 3 noodles. Spread 1-1/2 cups sauce to edges of noodles. Top with half of the spinach mixture. Repeat layers. Top with the remaining noodles, sauce and mozzarella cheese., Cover and bake at 375° for 30 minutes. Uncover; bake until bubbly, 10-15 minutes longer. Let stand for 10 minutes before cutting. If desired, top with minced fresh basil.