Mix the marinade. Combine the olive oil, herbs, lemon zest, lemon juice, garlic, salt, and pepper in a large mixing bowl (glass or plastic is best) and mix well. The marinate can be mixed in advanced and stored in an airtight container in the fridge.
Marinate the chicken. Trim the chicken thighs of excess fat. If you're using chicken breasts, butterfly them or pound them into an even 1/2 inch thickness. Add the chicken to the marinade and toss well to coat. Cover and refrigerate for at least 30 minutes, up to 2 hours. Because this marinate is high in acidity, I don't recommend marinating longer than 2 hours.
Prep your grill. Before using your grill, make sure to clean the grates of any food and debris. Lightly grease the grates with nonstick spray. Set the temperature to medium-high. Close the lid and wait until the temperature reaches 450 F.
Grill the chicken. Place the marinated chicken on the prepared grill, disposing any excess marinade. Grill the chicken for 4-5 (6-8 minutes per side for chicken breast) minutes per side, or until an instant-read thermometer inserted in the center of the chicken registers an internal temperature of 165 degrees F.
Serve. Serve immediately with your favorite side dishes!
Notes
*I recommend using hardy herbs for this recipe like rosemary, thyme, sage, oregano, etc.