Preheat your oven to 425°F (220°C).

Peel and cube the sweet potatoes into uniform pieces, about 1-inch cubes.

In a mixing bowl, toss the cubed sweet potatoes with olive oil, garlic powder, smoked paprika, ground cumin, salt, and pepper.

Spread the seasoned sweet potatoes in a single layer on a baking sheet.

Place the baking sheet in the preheated oven and roast for 25-30 minutes, stirring halfway through.

Check for doneness; they should be fork-tender and slightly crispy. Roast for an additional 5-10 minutes if needed.

Remove from oven, let cool for a few minutes, and garnish with fresh herbs if desired.

Serve warm as a side dish or a hearty snack.