01 - Preheat oven to 425°F. Line a large baking sheet with parchment paper.
02 - In a large bowl, combine carrots, parsnips, sweet potato, red onion, and beets.
03 - Drizzle with olive oil, sprinkle with salt, pepper, and thyme. Toss until vegetables are evenly coated.
04 - Spread vegetables in a single layer on the prepared baking sheet.
05 - Roast for 35 to 40 minutes, stirring once halfway through, until vegetables are golden and tender.
06 - In a small bowl, whisk together balsamic vinegar and maple syrup if using.
07 - Drizzle the balsamic mixture over the hot roasted vegetables and toss gently to coat.
08 - Serve warm, garnished with additional thyme if desired.