Preheat the oven 200C/400F/Gas 6.
Place the herbs, garlic and oil into a food processor and blend to a smooth liquid. Pour out onto the pastry and spread evenly.
Place the wilted spinach onto the pastry.
Roll up the pastry from both ends so that they meet in the middle. Pinch the ends lightly to seal the pastry roll.
Slice the rolled pastry into 1cm/Â½in thick slices and place onto a baking sheet. Place into the oven to bake for 10-15 minutes, until golden and cooked through.
Remove from the oven, allow to cool slightly and serve.