Step 1To make base, place cauliflower florets in a food processor or blender in 2-3 batches. Blend until finely chopped but retaining some texture.
Step 2Transfer cauliflower to a microwave-safe bowl and cover. Microwave on high for 8 minutes or until just tender. Drain well and leave to cool completely.
Step 3Preheat oven to 200°C and line 2 large pizza trays with baking paper. Place all pizza base ingredients except oil spray in a large bowl. Mix until well combined.
Step 4Press cauliflower mixture on trays into 2 x 22cm circles, each about 3-4mm thick. Spray with oil. Cook for 15 minutes or until edges turn golden. Remove from oven and allow to cool a little.
Step 5Spread cauliflower bases with an even layer of tomato paste then top with mushrooms, half of the tomatoes, prawns and asparagus. Scatter with mint, lemon zest and parmesan.
Step 6Place pizzas in oven and cook for 10 minutes or until cheese is bubbling and golden.
Step 7Combine remaining tomatoes with salad greens and combined balsamic and oil dressing. Season with freshly ground black pepper.
Step 8Garnish pizza with extra mint. Slice then serve with salad.