Beefy Mac and Cheese

  4.3 – 16 reviews  • Level: Easy Total: 35 min Prep: 10 min Cook: 25 min Yield: 4 servings Ingredients Kosher salt 8 ounces medium pasta shells 3 tablespoons unsalted butter 1 small onion, chopped 1 tablespoon tomato paste 1 tablespoon chili powder 8 ounces ground beef 2 tablespoons all-purpose flour 1 cup low-fat (1 percent) … Read more