Ingredients

• 1 (1 pound) flank steak, trimmed
• salt and pepper
• cooking spray
• 1 tablespoon extra virgin olive oil
• 1 tablespoon butter
• 1/2 cup chopped onions
• 4 ounces mixed mushrooms, sliced
• 1/3 cup water
• 1 tablespoon Dijon mustard
• 1 tablespoon Worcestershire sauce
• 1/2 teaspoon chopped fresh thyme
• 1/4 cup low-fat sour cream

Directions

1. Preheat broiler.

2. Season both sides of the steak with salt and pepper. Place steak on a broiler pan sprayed with cooking spray. Cook in preheated broiler for 6 minutes on each side, or until desired doneness. Let rest 10 minutes.

3. Meanwhile, heat the olive oil and butter in a large saute pan. Add the onion and cook until soft, 3-5 minutes. Add the mushrooms and cook until tender. Stir in the water, mustard, Worcestershire sauce and thyme. Cook for 2 minutes. Turn off heat and stir in sour cream.

4. Cut steak diagonally across the grain into slices. Top with the mushroom sauce.

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