Roast pumpkin at 180 degrees for around 30 min until soft
Melt butter in cast iron pot with a lid. Add chorizo and mushroom and stir until chorizo is browned
Add onion and garlic, cook until soft
Add rice and stir for 1-2 min until coated and translucent
Add wine and stir until absorbed suitable to freeze at this stage
Add pumpkin, water and broth. Heat until just shy of a simmer
Cover with lid and place into oven for 20 minutes. Uncover and cook a further 10 minutes or until rice cooked
Add parmesan and stir until pumpkin turns into puree
Serve with extra parmesan, and if desired, crispy sage