Preheat the oven to 425°F (220°C).
Peel and dice the sweet potatoes into 1-inch cubes.
In a large mixing bowl, combine sweet potatoes, olive oil, brown sugar, cinnamon, salt, and nutmeg.
Spread the mixture evenly on a baking sheet.
Roast in the oven for 25-30 minutes, stirring halfway through.
Optionally, sprinkle with fresh herbs before serving.
Serve warm, drizzling any remaining glaze from the baking sheet over the potatoes.