Preheat the oven to 180 degrees. Line tray with baking paper
Whisk the chickpea flour, Brilliance collagen powder and nigella seeds together with the water. Let this sit for 10-15 minutes
Meanwhile, toss the cauliflower, broccoli and asparagus in olive oil and sumac. Season with salt and pepper and bake until golden and crispy - for approximately 30-40 minutes
In a nonstick pan, ladle 1/4 of the pancake batter and cook for 1-2 minutes on each side
Toss the roast vegetables in some tahini, and serve alongside the pancakes with an extra drizzle of tahini and a sprinkle of zaatar