INGREDIENTS
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Ingredients
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2 tablespoons Dijon mustard
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1 boneless beef chuck roast (about 3-1/2 pounds)
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4-1/2 teaspoons onion soup mix
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1/4 teaspoon pepper
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8 medium potatoes, peeled and halved
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8 medium carrots, halved
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8 small onions, cut into wedges
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1 cup buttermilk