01 - In a mixing bowl, whisk together honey, olive oil, lime zest, lime juice, minced garlic, salt, black pepper, and ground cumin until combined.
02 - Arrange chicken breasts in a resealable bag or shallow dish. Pour the marinade over the chicken, ensuring each piece is thoroughly coated. Refrigerate and marinate for at least 20 minutes and up to 4 hours.
03 - While the chicken marinates, combine diced mangoes, red onion, bell pepper, jalapeño, lime juice, cilantro, salt, and black pepper in a medium bowl. Toss gently and set aside.
04 - Preheat a grill or grill pan to medium-high heat. Remove chicken from marinade and discard excess liquid.
05 - Grill chicken breasts for 6 to 7 minutes per side, until cooked through and juices run clear. Internal temperature should reach 165°F (74°C).
06 - Transfer grilled chicken to a plate and allow to rest for 5 minutes before serving.
07 - Plate each chicken breast and generously top with mango salsa. Garnish with lime wedges and extra cilantro leaves as desired.