Preheat oven to 350°F. Combine Ricotta cheese, eggs and Parmesan cheese in large bowl; set aside.
Combine pasta with sauce in another bowl.
Spoon 1/2 of the pasta mixture in 13 x 9-inch baking dish; evenly top with cheese mixture, then remaining pasta mixture. Sprinkle with Mozzarella cheese. Bake 30 minutes or until heated through. Serve, if desired, with additional heated sauce.