Preheat your grill to medium-high heat.
In a small bowl, whisk together the olive oil, lemon juice, minced garlic, dried oregano, dried thyme, dried rosemary, salt, and pepper.
Place the chicken breasts in a resealable plastic bag and pour the marinade over the chicken. Seal the bag and massage the marinade into the chicken to coat it evenly. Marinate in the refrigerator for at least 30 minutes, or up to overnight.
Remove the chicken from the marinade and discard the excess marinade.
Grill the chicken for about 6-8 minutes per side, or until cooked through and the internal temperature reaches 165°F.
Transfer the cooked chicken to a serving platter and garnish with sliced lemon and chopped parsley.
Serve hot and enjoy!