01 - Whisk together honey, olive oil, lime zest, lime juice, garlic, chili powder, salt, and pepper in a medium bowl until thoroughly combined.
02 - Place chicken breasts in a resealable plastic bag or shallow dish. Pour marinade over chicken, ensuring all pieces are evenly coated. Refrigerate for at least 30 minutes, up to 4 hours for deeper flavor penetration.
03 - Combine diced mango, red onion, bell pepper, jalapeño, cilantro, lime juice, salt, and pepper in a bowl. Toss gently to mix without mashing the fruit. Refrigerate until serving.
04 - Heat grill or grill pan over medium-high heat until hot. Remove chicken from marinade and discard excess liquid.
05 - Cook chicken for 6 to 7 minutes per side until internal temperature reaches 165°F and juices run clear. Avoid overcooking to maintain juiciness.
06 - Transfer grilled chicken to a clean plate and let rest for 5 minutes to redistribute juices. Top each breast with generous mango salsa, garnish with lime wedges and extra cilantro if desired.