• 8 Ingredients
  • 1 pound pasta shells
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  • 4 tablespoons butter
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  • 1/2 onion, finely chopped
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  • Kosher salt and freshly ground b...
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  • 1/4 cup all-purpose flour
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  • Show all (8)
  • Nutrition 100% match
  • Calories per gram: 1.8
  • Total fat: Med
  • Show all

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