Heat the oven to 200°C/180°C fan/400°F/gas mark 6. Line a baking sheet or 26-88cm round cake tin with baking parchment.
Peel and de-seed the butternut squash then cut it into approx 1cm dice. Toss it with the 2 tablespoon of olive oil and a little salt then spread the dice out across a couple of baking trays and roast for about half an hour until the squash is tender.
Meanwhile, mix all of the almond feta cheese with the chopped fresh thyme, rosemary, spring onions, chilli flakes, toasted pine nuts and plenty of black pepper.
Very gently stir in the roasted butternut squash and add salt to taste. Try not to mash the squash too much. Depending on the size of your butternut squash you may not need to add all of it.
To assemble the pie, lay a sheet of filo pastry on a work surface with the long side facing you (keep the rest of the pastry covered with a damp tea towel to prevent it from drying out). Brush one of the short edges with a little olive oil and lay another sheet of pastry on the work surface, overlapping the oiled short edge of the first one by about 5cm.
Brush the pastry all over with a little olive oil then add another two sheets on top, brush with oil again and add another two sheets if you have enough pastry, brush with oil again.
I used a total of 18 sheets of pastry – three two sheet wide sections, three sheets deep. If you have fewer than 18 sheets then you can just double, rather than triple layer the pastry (so a total of 12 sheets).
Take ⅓ of the butternut cheese mixture and form it into a long snake along the long edge of the pastry, leaving a 5cm gap at the bottom. Try and make sure that the filling is evenly spread.
Roll the pastry up from the bottom into a long sausage. Coil the sausage, seam side down, and place it on the lined baking sheet or into the cake tin.
Repeat the steps above two more times, tucking the beginning of each coil into the end of the previous one to form one long spiral. *see post above for step by step photos*
When you are shaping the coil, don’t panic if you get a couple of tears in the pastry. Simple tear off a scrap of unused phyllo, brush it with olive oil and use it to cover the tear; repeat with another layer if needed. No one will be able to tell!
Brush the pastry all over with olive oil. Bake the vegan butternut squash and feta phyllo pie for around 45 minutes until it is golden brown and crisp. Allow to cool a little before serving.