Cooking Instructions

• In a bowl combine beef, Worcestershire sauce, garlic and pepper.  Shape beef mixture into eight thin 4-inch-diameter patties. Place 1 tablespoon of the blue cheese into the centers of four of the patties. Top with the remaining four patties; pinch edges to seal.
• Brush onion slices with olive oil; sprinkle with salt.
• Place burgers and onion slices on grill directly over medium-high heat.  Grill uncovered for 5 minutes per side or until done (160°F to 165°F).  Brush cut sides of buns with olive oil. Grill, cut side down, the last minute of grilling.
• Serve burgers on buns with grilled onion slices, arugula, and remaining cheese.