Preheat oven to 220 C / 425F. Line a baking tray with baking paper. Set aside.
Remove the leaves from cauliflower. Cut in half.
Carefully slice 3 cm wide steaks (you’ll get 2-3 steaks depending on the size of the cauliflower) from each half of cauliflower head.
Arrange the steaks on the baking tray in a single layer. Set aside.
To make the spice mixture, combine together cumin and paprika in a small bowl. Season with salt and pepper. Set aside.
Meanwhile, drizzle the steaks with 1 tablespoon oil. Sprinkle with half of spice mixture. Turn over and sprinkle with the remaining spice mixture. Flip them over again.
Transfer tray to the oven. Bake for 15 minutes.
Flip the steaks and drizzle with remaining olive oil. Continue roasting for another another 15 minutes until tender and golden.
Serve with lemon wedges and avocado hollandaise or your favorite steak sauce.