Stir together first 4 ingredients.
Spread 1 1/2 cups Italian Meat Sauce in a 13- x 9-inch baking dish coated with cooking spray. Arrange 4 noodles over meat sauce; top with half of ricotta mixture, 1 1/2 cups Italian Meat Sauce, and 3/4 cup shredded mozzarella. Arrange 4 noodles over cheese; top with remaining ricotta cheese mixture and 1 1/2 cups Italian Meat Sauce. Arrange 4 noodles over sauce; top with remaining 1 1/2 cups Italian Meat Sauce. Sprinkle evenly with remaining 3/4 cup mozzarella cheese.
Bake, covered, at 350° for 50 minutes to 1 hour. Uncover and bake 5 more minutes. Remove from oven; let stand 15 minutes.
*1/2 cup freshly shredded Parmesan cheese may be substituted.