Hearty Lasagna

Directions

1. In a large skillet, cook beef, onion and garlic in oil until meat is browned and onion is tender; drain. Stir in tomatoes, tomato sauce, tomato paste, oregano, sugar, salt and pepper. Place carrots and celery in sauce. Simmer, uncovered, for 1-1/2 hours, stirring occasionally.
2. Meanwhile, cook lasagna noodles according to package directions. Drain; rinse in cold water. Remove and discard carrots and celery.
3. In a greased 13x9-in. baking dish, layer one-third of the noodles, one-third of the meat sauce, one-third of the ricotta, one-third of the mozzarella and one-third of the Parmesan. Repeat layers once. Top with remaining noodles and meat sauce.
4. Cut a heart out of aluminum foil and center on top of sauce. Dollop and spread remaining ricotta around heart. Sprinkle with remaining mozzarella and Parmesan. Bake, uncovered, at 350° for 45 minutes. Remove and discard foil heart. Let stand 10-15 minutes before cutting.