Preheat the oven to 220°C/gas mark 7/425ºF. Lay the naan breads on a lined baking sheet.
Mix the passata with the garlic, chilli and some salt and pepper; spread it evenly over the naan breads. Sprinkle over some dried oregano then top with the mozzarella slices and grated cheddar.
Cook in the oven for about five minutes or so, until the cheese is melted and bubbling. Scatter over some roughly torn fresh basil leaves and serve.