01 - Preheat oven to 425°F. Line a large baking sheet with parchment paper.
02 - In a large mixing bowl, combine the sweet potato cubes with olive oil, brown sugar, cinnamon, nutmeg (if using), kosher salt, and freshly ground black pepper. Toss until evenly coated.
03 - Spread the coated sweet potatoes in a single layer on the prepared baking sheet.
04 - Roast for 25 to 30 minutes, stirring once halfway through, until the sweet potatoes are tender and caramelized at the edges.
05 - Serve warm, optionally garnished with an extra sprinkle of cinnamon or fresh herbs.