Preheat the oven to 200'C (gas mark 7).
Peel the peppers and cut into fine strips. Drain the mozzarella balls and cut into slices.
Spread the pizza dough onto a baking sheet. Then spread the tomato sauce onto the pizza dough a few millimetres thick, arrange the sliced peppers, pepperoni and capers on top. Finish with the mozzarella slices.
Bake for 10 minutes.
When the mozzarella is lightly browned remove from the oven.
«You can vary this recipe by replacing the pepperoni with sliced chorizo. »