"This cheesy baked spaghetti is made with ground beef or Italian sausage, pasta, tomatoes, mozzarella and Pecorino Romano cheese...."
INGREDIENTS
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2 tablespoons olive oil
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8 to 12 ounces lean ground beef (85% lean) or bulk sweet Italian sausage
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3 large garlic cloves, finely chopped
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1 small yellow onion (about 5 oz), finely chopped
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1 teaspoon chopped fresh rosemary
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1/4 to 1/2 teaspoon dried red pepper flakes
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2 tablespoons tomato paste
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One (28-ounce) can whole peeled Italian tomatoes, chopped in their can with kitchen scissors
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5 cups cold water
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1 tablespoon coarse kosher salt (preferably Diamond Crystal)
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1 pound dried spaghetti (uncooked), broken in half
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1/4 cup plus 2 tablespoons freshly grated Pecorino Romano cheese
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8 ounces low-moisture mozzarella cheese (not fresh), shredded