Stir the sauce, 1 cup mozzarella cheese and ziti in a large bowl. Spoon the mixture into a 2-quart shallow baking dish. Sprinkle with the remaining mozzarella cheese and Parmesan cheese.
Meanwhile, in a large pot of boiling salted water, cook ziti until al dente according to ... Layer half of pasta mixture in a 15"-by-10" baking dish. Dollop with half of ricotta mixture.