1.Preheat oven to 200°C/180°C fan forced. Wrap beetroot separately in foil. Place on a baking tray. Bake for 30 minutes. Add carrots to tray; drizzle with oil. Bake for 25-30 minutes more or until vegetables are tender. Cool for 5 minutes. Carefully peel beetroot and cut into quarters.
2.Meanwhile, cook quinoa in a saucepan of boiling water for 12 minutes or until tender. Drain well. Transfer to a large heatproof bowl.
3.Add beetroot, carrot, hazelnuts, fetta, spinach, zest and juice to quinoa; toss to combine. Season. Serve.
To avoid staining your hands when handling beetroot, wear disposable gloves.