"Cheeseburgers? Good. Stuffed Shells? Good. Together? Amazing. Cheesy beef and onions are stuffed inside pasta shells and baked to hearty perfection...."
INGREDIENTS
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1 tablespoon olive oil
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1/2 sweet onion, diced
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2 cloves garlic, minced
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1 lb. ground beef
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1 teaspoon kosher salt
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1 teaspoon black pepper
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1/4 cup ketchup
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3 cups grated cheddar cheese, divided
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18 large pasta shells (from a 16 oz. box)
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Extra ketchup, for serving
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Fresh oregano, garnish