01 - In a small bowl, combine the minced garlic, chopped parsley, rosemary, thyme, olive oil, lemon juice, salt, and black pepper. Mix thoroughly until a fragrant, well-blended paste forms.
02 - Place the chicken breasts in a large resealable plastic bag or a shallow dish. Pour the marinade over the chicken, massaging the bag or turning the pieces to ensure even, complete coating on all sides. Allow to marinate at room temperature for at least 15 minutes, or refrigerate for up to 2 hours for more pronounced flavor penetration.
03 - Preheat the oven to 400°F or set a grill to medium-high heat, allowing it to reach full temperature before cooking.
04 - Remove the chicken from the marinade, letting any excess drip off, and discard the remaining marinade. For oven baking, arrange the chicken in a baking dish and bake for 25–30 minutes until the internal temperature registers 165°F on an instant-read thermometer. For grilling, cook the chicken for 6–7 minutes per side until fully cooked through with appealing char marks.
05 - Transfer the cooked chicken to a cutting board or platter and let it rest for 5 minutes to allow the juices to redistribute. Garnish with freshly chopped parsley and serve alongside lemon wedges.