Preheat your oven to 425°F (220°C) and line a large baking sheet with parchment paper for easy cleanup.
In a small bowl, whisk together the olive oil, minced garlic, lemon zest, lemon juice, dried Italian herbs, salt, and black pepper to create a flavorful marinade.
Place the chicken thighs in a large mixing bowl, pour half of the marinade over it, and toss to ensure the chicken is well coated. Let it marinate for about 15 minutes while you prepare the vegetables.
In the same bowl, add the halved baby potatoes and green beans. Drizzle the remaining marinade over the vegetables and toss to coat evenly.
Arrange the marinated chicken thighs skin side up on one side of the prepared baking sheet. Spread the potatoes and green beans on the other side.
Roast in the preheated oven for about 30-35 minutes or until the chicken is cooked through (internal temperature should reach 165°F/75°C) and the vegetables are tender and slightly caramelized.
If preferred, broil for an additional 2-3 minutes at the end to crisp the chicken skin.
Remove from the oven, let it rest for a few minutes, then garnish with freshly chopped parsley before serving.
Notes
For extra crispy skin, broil for a few minutes at the end.