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1 boneless beef top round steak, about 1 1/2-inches thick (about 1 1/2 pounds)
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2 tablespoons Butter
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6 ounces mushroom, sliced (about 2 cups)
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1 medium onion, chopped (about 1/2 cup)
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1 can (10 3/4 ounces) Campbell's® Condensed Cream of Mushroom Soup (Regular or 98% Fat Free)
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1/4 cup water
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2 teaspoons worcestershire sauce
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