Stir lime juice with sugar, water, mint and lime zest until sugar dissolves; set aside. Preheat your George Foreman Grill for 5 minutes with the lid closed. Place mango halves on grill and cook, turning once, for 3 to 4 minutes or until grill marked.
Drizzle the lime-mint sauce over mangos. Serve with sorbet. Garnish with mint, if desired.
Tip: This recipe is also delicious with grilled pineapple.