01 - Preheat oven to 425°F and line a large baking sheet with parchment paper.
02 - In a large bowl, toss the halved potatoes with 2 tablespoons olive oil, half the garlic, rosemary, thyme, salt, and pepper until evenly coated.
03 - Spread the potatoes in a single layer on the prepared baking sheet. Roast for 20 minutes.
04 - Meanwhile, toss the green beans with the remaining 1 tablespoon olive oil and garlic.
05 - After 20 minutes, add the green beans to the baking sheet with the potatoes. Toss gently and spread everything out evenly.
06 - Roast for an additional 10–15 minutes, or until potatoes are golden brown and green beans are tender-crisp.
07 - Remove from oven, sprinkle with chopped parsley, and serve immediately.