Pre- heat your oven to 180C.
Add the onion and oil to a medium pan and fry gently on a low heat for around 10 minutes until soft and browning.
Add the garlic and fry for a further minute.
Next, add the squash and mushrooms and fry for 10 minutes until soft. Stir in the kale and. Turn off the heat when wilted.
Toast the hazelnuts, sunflower seeds and pine nuts in a dry pan until slightly golden. Add them to a food processor. Pulse a few times.
Add them to the pan along with the remaining ingredients. Stir to combine.
Chop the chestnuts roughly and add them to the pan.
Stir everything to combine.
Transfer the mix to a medium greased bunt tin of choice–I used a silicone one as it’s easier to remove the nut roast.
Press the mix down firmly into the bunt tin.
Bake for 40 minutes–the nut roast should be a little brown on top.
Allow to cool, then carefully flip onto a plate.
Top with vegetable crisps, herbs, etc.