Cut the bell peppers, sweet potatoes, and onion, and place them directly in a baking dish. Add olive oil, salt, and pepper to taste.

Remove the skin from the chicken drumsticks and add them to the baking dish with the other ingredients. Drizzle with more olive oil.

Place the baking dish in a convection oven at 400°F (200°C) for about 1 hour. For a crispier finish, switch to broil mode for the last 15 minutes. Once cooked, serve and enjoy!