"Gorgonzola cheese is an elegant topping for this hearty and unique steak dinner lovely enough to serve for company...."
INGREDIENTS
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Vegetable cooking spray
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1 boneless beef sirloin steak
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1 package (8 ounces) sliced mushrooms
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1 large onion
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1/4 cup balsamic vinegar
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1 cup Prego® Traditional Italian Sauce
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1/2 cup crumbled gorgonzola or feta cheese
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Hot mashed potatoes