Step 1

Process the cauliflower in a food processor until finely chopped. Place chopped cauliflower in a microwave-safe bowl. Cover and microwave on high for 8-10 minutes or until very tender. Drain through a fine sieve, pressing down well with a wooden spoon to remove excess liquid. Combine the cauliflower, egg and half the parmesan in a bowl.

Step 2

Preheat oven to 230°C/210°C fan forced. Line a 30cm-round pizza tray with baking paper. Press cauliflower mixture firmly into the tray. Bake for 20 minutes or until golden.

Step 3

Spread passata over base and sprinkle with olives, chorizo, thyme and remaining parmesan. Bake for 7 minutes or until chorizo is golden.