01 - Preheat your grill to medium-high heat, approximately 400°F. Allow the grates to get fully hot for proper searing.
02 - In a small mixing bowl, combine the olive oil, ground cumin, garlic powder, smoked paprika, kosher salt, and black pepper. Stir until a smooth paste forms.
03 - Pat the chicken breasts dry with paper towels. Rub the spice mixture evenly over both sides of each breast, ensuring full coverage.
04 - Place the seasoned chicken onto the hot grill grates. Cook for 5 to 6 minutes per side until the internal temperature reaches 165°F and juices run clear.
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. Close the grill lid and allow the cheese to melt completely.
06 - Transfer the chicken off the grill using tongs and let it rest for 5 minutes to allow the juices to redistribute.
07 - Scatter chopped cilantro and diced red onion over each chicken breast. Serve alongside fresh lime wedges for squeezing.