01 - Set the oven to 400°F (200°C) to prepare for roasting.
02 - In a large bowl, combine diced sweet potato, sliced carrots, red onion wedges, and halved Brussels sprouts. Add olive oil, maple syrup, apple cider vinegar, sea salt, black pepper, and dried thyme; toss thoroughly until evenly coated.
03 - Spread the mixture in a single layer on a parchment-lined baking sheet to ensure even roasting.
04 - Roast vegetables for 15 minutes until they start to soften and brown lightly.
05 - Remove the sheet, scatter whole raw almonds evenly over the vegetables, gently toss, then return to the oven and roast for an additional 10 minutes until vegetables are tender and almonds toasted.
06 - Transfer the roasted vegetables and almonds to a serving dish, sprinkle with fresh chopped parsley if desired, and serve warm.