INGREDIENTS
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Bechamel Sauce:
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5 tablespoons unsalted butter, plus 2 tablespoons for the lasagna
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1/2 cup all-purpose flour
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4 cups whole milk at room temperature
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Pinch freshly grated nutmeg
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1 1/2 cups tomato sauce, recipe follows
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Salt and white pepper
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1/4 cup extra-virgin olive oil
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1 pound ground chuck beef
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Salt and pepper
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1 1/2 pounds ricotta cheese
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3 large eggs
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1 pound lasagna sheets, cooked al dente
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2 packages (10 ounces each) frozen chopped spinach, thawed and squeezed dry
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3 cups shredded mozzarella
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1/4 cup freshly grated Parmesan
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Directions
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Preheat oven to 375 degrees F.