In a medium-sized bowl place cauliflower florets, garlic cloves (in skin), and 2 tablespoons olive oil. Toss and transfer onto a baking tray. Place in oven and roast for 20-25 minutes or until cauliflower is golden.
Remove tray from oven and allow cauliflower and garlic to cool. Transfer the cauliflower into blender. Then squeeze the roasted garlic out of their skins and into the blender. Add roughly two-thirds of the pepitas and walnuts, along with the lemon juice, parsley and remaining olive oil. Blend for about 1 minute or until nice and smooth. Season with salt and pepper and transfer to serving dish.
Garnish with remaining nuts and seeds and drizzle with a little olive oil.
