"Starting with Hamburger Helper® gets you to this fabulous beef stroganoff quickly...."
INGREDIENTS
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1 lb beef sirloin steak, 1/2 inch thick
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3 tablespoons butter or margarine
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8 oz fresh mushrooms, sliced (2 1/2 cups)
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2 1/4 cups milk
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2 tablespoons sherry or chicken broth
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1 box Hamburger Helper® Stroganoff
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2 tablespoons sour cream
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2 tablespoons chopped fresh parsley, if desired