01 - Set oven temperature to 425°F. Line a large baking sheet with parchment paper.
02 - Combine halved potatoes and parsnips in a large bowl. Add olive oil, rosemary, thyme, minced garlic, sea salt, and black pepper. Toss thoroughly to coat evenly.
03 - Spread the coated vegetables into a single layer on the prepared baking sheet to ensure even roasting.
04 - Bake for 35 minutes, stirring halfway through, until potatoes and parsnips achieve a golden brown color and are tender when pierced.
05 - Transfer roasted vegetables to a serving platter. Optionally garnish with additional fresh herbs. Serve while hot.