Boil your pasta according to package instructions and drain
Fry your mushrooms in olive oil and season with salt and cayenne pepper and mixed herbs. When they are completely browned, mix your corn flour with soya milk and stir well. Add half of this mixture to the mushrooms and simmer for a minute or so
The sauce will start to thicken and when it does, add the remainder of the soya milk mixture and the grated parmesan cheese. Remove from heat
Pour the sauce over your pasta and season further if required. I topped my bowl with shredded spinach.