Preheat your oven to 180°C / 350-375°F / Gas Mark 4-5.
Remove frozen puff pastry from the freezer and set on the bench to thaw.
Working one sheet at a time, place thawed puff pastry sheet onto a chopping board and use a butter knife to spread a layer of the pesto onto the pastry. Note 5
Start at one end and roll the pastry to form a tight long log. Wrap in cling wrap and place in the freezer for 30 mins Optional Note 6
Remove pastry from the freezer, place on chopping board and use a sharp knife to cut into portions.
Transfer the cut pinwheels to the silicon baking mat (or parchment paper). Place the tray into the oven and allow the scrolls to bake for 15 mins.
Use an oven mit to remove baking tray, place on heat proof surface and sprinkle parmesan cheese over each pinwheel.
Return pinwheels to the oven for 5 - 10 mins till cheese is melted.
When the timer is up, check that the pinwheels are done, then turn the oven off, leave the tray in so that the scrolls can start to cool.
After about 5 mins, use a flexible turner and lift the cooked pinwheels off the baking mat and transfer them to the cooling rack.
Sprinkle with parmesan cheese and finely chopped parsley. Optional