INGREDIENTS
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2 tablespoons extra-virgin olive oil
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1/2 cup diced pancetta (about 2 ounces)
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1 large Spanish onion, diced
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Kosher salt
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2 cloves garlic, smashed
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Pinch of red pepper flakes
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2 28-ounce cans San Marzano plum tomatoes
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Kosher salt
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1 16-ounce box lasagna noodles
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4 cups ricotta cheese
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2 tablespoons grated pecorino cheese
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1/2 cup grated parmesan cheese
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3/4 pound mozzarella cheese, shredded (about 3 cups)
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2 large eggs
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5 sprigs fresh thyme, leaves roughly chopped