Chop the onion and saute in a bit of olive oil.
Cut the pumpkin and chop into ½ inch cubes, add into the pan along the sage leaves and seasoning. Cook in medium heat for approximately 20 minutes.
Whilst the pumpkin is cooking, make the pasta.
Once the pumpkin has soften up, roughly chop the brie and add it to the pot. It only takes a few minutes to melt.
Toast your pine nuts in a separate pan, just a couple of minutes until they get golden colour.