In a large bowl, mix the olive oil, garlic powder, cumin, smoked paprika, salt, and pepper. Add the chicken breasts and coat them well in the marinade. Cover and refrigerate for at least 30 minutes, or up to 2 hours for deeper flavor.
Preheat your grill to medium-high heat. If using a charcoal grill, ensure the coals are hot and glowing.
Remove the chicken from the marinade, letting any excess drip off. Place the chicken on the grill and cook for about 6-7 minutes per side, or until the chicken is cooked through and the internal temperature reaches 165°F (75°C).
Two minutes before the chicken is done, spoon the salsa verde generously over each piece of chicken, allowing it to warm through.
After applying the salsa, sprinkle shredded pepper jack cheese on top of the salsa-covered chicken. Close the grill lid and cook for an additional minute, until the cheese is melted.
Remove the chicken from the grill and let it rest for a few minutes. Garnish with fresh chopped cilantro and serve with lime wedges on the side for squeezing over the chicken.
Notes
For best flavor, marinate the chicken for up to 2 hours.
Keyword grilled chicken, pepper jack cheese, salsa verde