01 - Set your grill to medium-high heat, targeting approximately 400°F. Allow the grates to fully heat for optimal searing.
02 - In a small mixing bowl, combine the olive oil, ground cumin, garlic powder, smoked paprika, salt, and black pepper. Stir until a smooth paste forms.
03 - Rub the marinade mixture evenly over both sides of each chicken breast, ensuring full surface coverage for consistent flavor.
04 - Place the seasoned chicken breasts on the hot grill. Cook for 5 to 6 minutes per side until fully cooked through and juices run clear. Verify the internal temperature reaches 165°F with a meat thermometer.
05 - During the final 2 minutes of grilling, spoon 2 to 3 tablespoons of salsa verde over each chicken breast. Lay one slice of Pepper Jack cheese on top of each piece. Close the grill lid and allow the cheese to melt completely.
06 - Transfer the chicken off the grill and let it rest for 5 minutes to allow the juices to redistribute throughout the meat.
07 - Scatter chopped cilantro and diced red onion over the chicken. Serve immediately with fresh lime wedges alongside.