01 - In a large bowl, thoroughly whisk honey, olive oil, lime zest, lime juice, garlic, salt, black pepper, and cumin until fully blended.
02 - Place chicken breasts in a resealable bag or shallow dish, pouring marinade evenly over. Turn each piece to coat fully. Refrigerate for at least 20 minutes and up to 4 hours.
03 - While chicken marinates, gently combine diced mango, chopped red onion, red bell pepper, jalapeño, fresh lime juice, cilantro, salt, and pepper in a mixing bowl. Toss lightly and set aside.
04 - Preheat a grill or grill pan to medium-high heat. Remove chicken from marinade and discard any excess liquid.
05 - Grill chicken breasts for 6 to 7 minutes per side, turning once, until cooked through and juices run clear. Ensure internal temperature reaches 165°F.
06 - Transfer chicken to a clean plate and allow to rest for 5 minutes to retain juices.
07 - Arrange each chicken breast on a plate, generously topping with mango salsa. Garnish with lime wedges and extra cilantro leaves as desired.