01 - Whisk together lime juice, olive oil, minced garlic, honey, chili powder, ground cumin, paprika, salt, and black pepper in a mixing bowl until fully combined.
02 - Place chicken breasts in a resealable bag or shallow dish. Pour marinade over the chicken, ensuring even coverage. Seal and refrigerate for at least 15 minutes or up to 2 hours to intensify flavor.
03 - Bring grill or grill pan to medium-high heat, preparing the cooking surface for even grilling.
04 - Remove chicken from marinade, letting any excess drip off. Grill for 6 to 8 minutes per side, or until internal temperature reaches 165°F and juices run clear.
05 - Gently combine avocado, cherry tomatoes, red onion, and cilantro in a bowl. Season lightly with salt and toss to coat evenly.
06 - For a melted cheese finish, sprinkle shredded Monterey Jack or Cheddar over each chicken breast during the final 2 minutes on the grill.
07 - Top each grilled chicken breast with the avocado mixture. Finish with a squeeze of fresh lime and extra cilantro. Serve with additional lime wedges if desired.