Preheat your oven to 425°F (220°C).
Wash, peel, and cut all your vegetables into roughly 1-inch pieces. Remember, uniformity is key for even cooking!
In a large mixing bowl, combine the cut vegetables: carrots, parsnips, sweet potato, red onion, and beets.
In a small bowl, whisk together the olive oil, minced garlic, chopped rosemary, thyme leaves, salt, and pepper.
Pour the oil and herb mixture over the vegetables and toss well to ensure all pieces are evenly coated.
Spread the vegetables in a single layer on a large baking sheet. Make sure they're not overcrowded to ensure proper caramelization.
Place the baking sheet in the preheated oven and roast for 35-40 minutes. Halfway through cooking (around the 20-minute mark), remove the sheet and flip the vegetables to ensure even browning.
The vegetables are done when they're fork-tender and have a golden-brown caramelized exterior.
Remove from the oven and let cool for a few minutes.
Optional: Drizzle with balsamic vinegar for an extra flavor boost.
Transfer to a serving platter and enjoy your delicious roasted root vegetable medley!