Preheat oven to to 400°F (200°C).
Remove the outer leaves of the cauliflower. Cut the cauliflower into 1 to 1.5-inch thick "steaks" by slicing through the center of the head. You should get about 3-4 steaks, with some florets left behind.
Combine spices and olive oil. Place the cauliflower steaks on a baking sheet.
Brush one side of the cauli steak with the spice rub. Bake for 25 minutes, flipping them halfway to brush the spice rub on the other side.
Roast red bell peppers on a pan. In a food processor, combine chickpeas, roasted red pepper, tahini, spices, lemon juice, olive oil, salt, pepper and ice cubes. Blend until smooth.
If the hummus is too thick, add a little chickpea water, 1 tablespoon at a time, until you reach the desired creamy consistency.
Spoon a generous amount of the roasted red pepper hummus on a plate and spread it. Place the roasted cauliflower steak on top.
Garnish with fresh parsley and pomegranate pearls. Enjoy!