In a large bowl, mix the chicken with lemon juice, olive oil, garlic, thyme, parsley, salt, and pepper. Let it marinate for at least 15–20 minutes (or up to 8 hours for max flavor).
2 lbs boneless skinless chicken breast, 2 tbsp lemon juice, 1 tbsp olive oil, 3 cloves garlic, 1 tsp dried thyme, 1 tsp dried parsley, 1 tsp salt, 1/2 tsp black pepper