Optional: 1 ½ ounces thinly sliced prosciutto or good bacon
Instructions: Preheat grill to medium heat. Cup the peaches in half and pit. Drizzle the cut peach section with the lemon juice. Place the walnuts on a baking sheet and toast in the oven until golden, about 15 min. Coarsely chop the walnuts and mix with the Gorgonzola cheese until combined. Place peaches, cut sides down, on grill rack coated with cooking spray, and grill for about 3 minutes or until soft and slightly browned. Turn and put a teaspoon of the Gorgonzola-walnut mixture into the middle of each peach and cook 2 minutes or until heated through. Alternatively, fill the hollow of each peach with a teaspoon of the Gorgonzola-walnut mixture, wrap each half with a single layer of prosciutto or bacon, and secure with a toothpick, if needed. Place on BBQ and grill for about 4–5 minutes, until cheese is melted and bacon in crisp. Place on a bed of arugula and serve at once.