Step 1: Heat oven to 240c/220c fan/gas 9.
Step 2: oil a 20 x 24cm baking tray.
Step 3: mix the flour, yeast, ¼ tsp salt and the sugar in a bowl,then stir in the water.
Step 4: bring the mixture together, knead until smooth, then press into the oiled tray.
Step 5: spread passata over the dough, leaving a thin border round the edge.
Step 6: season the passata, then sprinkle with the chopped basil, the mozzarella and the parmesan, and bake for 15-20 mins or until cooked through.
Step 7: scatter with the remaining basil