01 - Preheat the oven to 425°F and line a large baking sheet with parchment paper.
02 - In a large bowl, combine potatoes, parsnips, olive oil, rosemary, thyme, garlic, salt, and pepper, tossing until evenly coated.
03 - Spread the coated vegetables in a single layer on the prepared baking sheet.
04 - Roast for 35 minutes, turning halfway through, until golden brown and tender.
05 - Transfer to a serving platter, garnish with fresh herbs if preferred, and serve hot.