Prep Time: 10
Cook Time: 15
Serves: Serves: 8
Combine Blue cheese, Ricotta cheese, mayonnaise, lemon juice, half-and-half, Worcestershire sauce and cayenne pepper in medium mixing bowl. Chill.
Preheat grill or broiler. Grill sirloin steak to desired doneness; thinly slice. Serve with Blue cheese sauce.