Preheat oven to 220°C fan forced. Grease a large roasting pan.
Place the vegetables into the roasting pan. Combine olive oil, oregano, and salt and pepper and pour over the vegetables, toss to coat.
Roast for 30-40 minutes, turning vegetables every 15 minutes until light golden and tender. Remove from the oven, drizzle over extra virgin olive oil and squeeze over lemons. Serve.