1. 1. Preheat the oven to 400°F (200°C).

2. 2. Season the lamb with salt, pepper, and your favorite herbs.

3. 3. Place the lamb in a roasting pan.

4. 4. In a large bowl, toss broccoli, cauliflower, parsnips, turnips, pumpkin, carrots, and avocado with olive oil, salt, and pepper.

5. 5. Spread the mixed vegetables on a baking sheet lined with parchment paper.

6. 6. Roast the lamb in the oven for about 30-40 minutes or until cooked to your desired level of doneness.

7. 7. Roast the mixed vegetables for about 20-25 minutes or until they are tender and slightly browned.

8. 8. Cook quinoa according to package instructions.

9. 9. Serve the roasted lamb with mixed vegetables and quinoa on the side.

10. 10. Enjoy your delicious and nutritious meal!