Preheat oven to 375°F. If you have a convection oven setting, this is a good time to use it.
Lay the sweet potatoes in a single layer on a roasting tray. Sprinkle generously with onion powder, garlic powder, paprika, thyme, salt and pepper. Drizzle with oil and honey. With your hands, toss and coat potatoes thoroughly.
Roast for 25 to 35 minutes in oven or until lightly browned. Serve warm.