Preheat your oven to 425°F (220°C).
Prepare the sweet potatoes by peeling and cubing them into even pieces.
In a large bowl, combine the cubed sweet potatoes with olive oil, brown sugar, cinnamon, salt, black pepper, and nutmeg.
Toss the ingredients until everything is well combined.
Spread the seasoned sweet potatoes in a single layer on a baking sheet.
Roast in the preheated oven for 25-30 minutes, stirring halfway through.
Check for doneness and adjust cooking time as needed.
Remove from the oven and let the sweet potatoes cool slightly before serving.