In a medium bowl combine spaghetti sauce and ground beef. In a separate bowl combine ricotta cheese, 3/4 cup Parmesan cheese and parsley.
Pour 3/4 cup tomato mixture in the bottom of a 9 X 13 inch baking dish. Layer 1/3 of noodles, 1/2 ricotta mixture, 1/3 of remaining tomato mixture and 1 cup mozzarella cheese and 3/4 cup Parmesan cheese. Continue to layer and top with mozzarella cheese.
Cover with foil and bake at 350 degrees for 50 minutes. Uncover and bake 15 more minutes.