01 - Preheat grill to medium-high heat, approximately 400°F. Ensure grates are clean and lightly oiled to prevent sticking.
02 - In a small mixing bowl, combine olive oil, ground cumin, garlic powder, smoked paprika, salt, and black pepper. Stir until a smooth paste forms.
03 - Coat both sides of each chicken breast evenly with the seasoning mixture, pressing gently to adhere the spices to the meat.
04 - Place chicken breasts on the preheated grill. Cook for 5 to 6 minutes per side until fully cooked through and juices run clear. Internal temperature should reach 165°F when checked 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 breast, close the grill lid, and allow the cheese to melt completely.
06 - Remove chicken from the grill and transfer to a platter. Let rest for 5 minutes to allow juices to redistribute throughout the meat.
07 - Top each chicken breast with chopped fresh cilantro and finely diced red onion. Serve immediately with lime wedges on the side.