Pour the cream and Parmesan cheese into a warm pan. Melt the cheese, mix well to make a sauce.
Melt a knob of butter in another pan and add the diced pumpkin. Stir until golden. Add the pumpkin to the Parmesan sauce and stir well.
Cook the tortellini in a separate pot following the instructions on the packet.
Serve the tortellini with the Parmesan and pumpkin sauce, sprinkle over the dry pumpkin seeds.