Heat a dash of oil in a frying pan, and add the small broccoli florets and garlic. Cook over a medium-low heat for 5 minutes, until the garlic is fragrant and the broccoli is slightly softened. Season with salt and pepper, and set aside.
Heat the oven to 190°C (Gas Mark 5 / 375°F).
Roll out the pizza dough, and cut circles - when you need to, re-roll the scraps to cut more circles. My circles measured just over 5 inches in diameter, and I made five in total.
Place the circles of pizza dough on a well greased baking tray, and add a small spoonful of pizza sauce (just 1 tsp or so each). Spread the sauce around, ensuring it doesn't go too close to the edges.
Add a small amount of garlicky broccoli and some grated mozzarella (be careful not to overfill), and fold the circle in half to close it. Use a fork to tightly seal the edges.
Bake for around 25 minutes, or until golden brown and crispy. Serve with extra tomato sauce (warm or at room temperature) for dipping.