Halve the pumpkin and scrape out the soft inside and seeds with a tablespoon. Cut the pumpkin into wedges and peel with a peeler.
Spread the pumpkin slices on a baking sheet lined with baking paper and bake in a hot oven at 200 ° C (top / bottom heat) in the middle of the oven for 40 minutes until soft (convection is not recommended).
Put the pumpkin in a saucepan and season with salt, pepper and freshly grated nutmeg. Mash with a potato masher and stir in 2 - 3 tablespoons of rapeseed oil.