Micki Slattery from Sarasota, Florida says:
Keeps well wrapped in the refrigerator, for up to two days. Makes a hearty last-minute salad for a fast dinner.

Prep Time: 10 minutes
Cook Time: 15 minutes

Ingredients:

• 1 21/2 pound sirloin steak, 1 1/2 inches thick

• 1/2 cup butter or margarine

• 1/4 cup chopped fresh parsley or 4 teaspoons dired parsley

• 1/4 cup minced onion

• 2 tablespoons Worcestershire sauce

• 1 teaspoon freshly ground pepper

• 1/2 teaspoon dry mustard

Directions:

Lightly score edges of steak at 1 inch intervals. Preheat grill or broiler.
Combine butter, parsley, onion Worcestershire sauce, peppper and mustard in a small saucepan. Heat, stirring continually, over low heat, until butter melts. Reserve 1/4 of the mixture.
Place steak on grill or broiler pan. Brush steak with butter mixture, about 6 minutes per side for medium.
Place steak on a serving platter. Cut thin slices across the grain. Drizzle reserve butter mixture over steak.