01 - Preheat grill to medium-high heat, approximately 400°F.
02 - Pat chicken breasts dry with paper towels. Combine olive oil, cumin, smoked paprika, garlic powder, onion powder, salt, and pepper in small bowl. Rub spice mixture evenly over both sides of each chicken breast.
03 - Place chicken on preheated grill. Cook for 5-7 minutes per side until internal temperature reaches 165°F and juices run clear.
04 - During final 2 minutes of grilling, spoon 2-3 tablespoons salsa verde over each chicken breast. Top with pepper jack cheese slice. Close grill lid to melt cheese.
05 - Remove chicken from grill and rest 3 minutes. Drizzle with remaining salsa verde. Sprinkle with fresh cilantro and green onions. Serve with lime wedges.