INGREDIENTS
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1 pound bulk Italian sausage
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1 medium onion, chopped
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2 garlic cloves, minced
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1 26-ounce jar spaghetti sauce
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1 16-ounce package uncooked penne pasta
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1 8-ounce package cream cheese, softened
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1 cup sour cream
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2 cups shredded cheddar cheese