Wash the basil and cut the pumpkin pieces. Dress the pizza base with tomato sauce, mozzarella, and mascarpone with gorgonzola. Sprinkle the pumpkin pieces all over the surface. Bake in a preheated oven (250°C) for 6-7 min. Take out of the oven, drizzle with extra-virgin olive oil, and sprinkle some oregano on top.