Drain pasta and pat dry. Spread 1/2 cup sauce over bottom of 13x9-inch glass baking dish. Place 5 noodles over sauce, overlapping to fit. Spread half of ricotta-spinach mixture evenly over noodles. Sprinkle 2 cups mozzarella cheese evenly over ricotta-spinach mixture. Spoon 1 1/2 cups sauce over cheese, spreading with spatula to cover (sauce will be thick). Repeat layering with 5 noodles, remaining ricotta-spinach mixture, 2 cups mozzarella and 1 1/2 cups sauce. Arrange remaining 5 noodles over sauce. Spread remaining sauce over noodles. Sprinkle remaining 3/4 cup mozzarella cheese and 1/4 cup Parmesan cheese evenly over lasagna. (Can be prepared up to 1 day ahead. Cover tightly with plastic wrap and refrigerate.) Cover baking dish with aluminum foil. Bake lasagna 40 minutes; uncover and bake until hot and bubbly, about 40 minutes. Let lasagna stand 15 minutes before serving.
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