Preheat your oven to 200℃/390℉.
Add your chopped cauliflower, potato, and sliced onion to a large bowl.
Add your spices.
Add your oil.
Give everything a good mix.
Transfer the spiced mixture to a lined baking tray.
Bake for 35 to 40 minutes.
Garnish with fresh chopped cilantro and a squeeze of lemon.
