01 - Preheat your oven to 425°F (220°C). Line a large baking sheet with parchment paper for easy cleanup.
02 - In a large bowl, combine the prepared carrots, parsnips, sweet potato, rutabaga, and red onion wedges.
03 - Drizzle the vegetables with olive oil. Add the chopped rosemary, sea salt, black pepper, and minced garlic. Toss thoroughly to ensure all pieces are evenly coated.
04 - Spread the seasoned vegetables in a single layer on the prepared baking sheet. Avoid overcrowding to promote even roasting.
05 - Roast for 35 to 40 minutes, stirring the vegetables about halfway through the cooking time, until they are tender and beautifully golden brown.
06 - Taste the roasted vegetables and adjust seasoning if necessary. Serve hot, optionally garnished with additional fresh rosemary.