"Winter weather calls for steaming bowls of this hearty soup. Chuck roast leftovers add extra homemade flavor. —Jeannie Klugh, Lancaster, Pennsylvania..."
INGREDIENTS
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Reserved leftovers from Carmelized Onion Chuck Roast
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3 cups beef broth
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2 cups frozen mixed vegetables
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1/4 cup quick-cooking barley
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1 teaspoon ground mustard