01 - Preheat oven to 425°F. Line a large baking sheet with parchment paper.
02 - In a large bowl, whisk together 2 tablespoons olive oil, garlic, rosemary, thyme, parsley, lemon zest, lemon juice, salt, and black pepper until well combined.
03 - Add chicken breasts to the bowl and toss to coat thoroughly. Let marinate for 10 minutes at room temperature.
04 - In a separate bowl, toss green beans with 1 tablespoon olive oil, ½ teaspoon salt, and ¼ teaspoon black pepper until evenly coated.
05 - Place marinated chicken breasts on one side of the prepared baking sheet. Spread green beans in a single layer on the opposite side.
06 - Roast in preheated oven for 20-25 minutes until chicken reaches internal temperature of 165°F and green beans are tender with slight caramelization.
07 - Remove from oven and let chicken rest for 5 minutes before serving. Plate chicken alongside roasted green beans.