Allow your pizza stone to preheat with the BBQ with the lid on, over a medium heat for 4-5 minutes.
Shape your dough with your hands, using a coarse flour or semolina powder on the work surface and pizza stone will stop it sticking.
Top the dough with pizza sauce, the mozzarella cheese, tomatoes, and oregano then transfer to the preheated pizza stone. Pop the lid on the BBQ and cook on a low heat for about 5 minutes.
Turn the pizza around during cooking, then finish with a drizzle of olive oil and torn basil leaves. Repeat for the remaining three pizzas!