Preheat the oven to 225˚C.
Place a pizza stone in the oven and heat for 30 minutes or place a heavy-based oven tray in to heat for 10 minutes
Divide the dough into 4 pieces and form into balls. Roll out to approximately 14 cm circles and place on a large piece of baking paper. Brush with oil then spread with tomato sauce.
Shave the zucchini into long strips with a vegetable peeler then stack together and cut into thin strips. Place in a bowl and toss with a little oil, salt and pepper.
Toss the prawns with a little oil and the chilli.
Divide the zucchini between the bases and top each one with 3 prawns, nestling them into the zucchini. Top with a generous grating of Parmesan, salt and pepper.
Bake for 8-10 minutes until puffed and golden. Makes 4 x 14 cm pizzas