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For the lasagna: Position an oven rack in the middle of the oven and preheat to 375 degrees F.
Spread 2 cups of the sauce in a thin layer over the bottom of a 13-by-9-inch baking dish. Layer 4 noodles over the sauce, top with 2 cups more sauce and spread it evenly over the noodles. Evenly dollop one-quarter of the ricotta across the sauce, top with one-quarter of the mozzarella and sprinkle evenly with one-quarter of the Parmigiano-Reggiano. Repeat with the remaining ingredients, for a total of 4 layers.
Cover with foil and bake until the liquids are bubbling and the noodles are beginning to soften, about 40 minutes. Remove the foil and continue baking until the top is golden brown and the noodles are completely tender, about 20 minutes more. Allow to rest 20 minutes before cutting.