Preheat oven to 190°C/fan 170°C/gas mark 5.
Rub the Fate Low Protein all-purpose mix, mixed herbs and margarine together in a mixing bowl, until it resembles coarse breadcrumbs.
Add the tomato purée and garlic puree and water to a bowl mix and add to the Fate mixture to form the pastry dough.
Leave to rest for 10 minutes.
Dust a clean work surface with Fate Low Protein All-Purpose Mix and knead the pastry for 1 minute, until smooth.
Using a rolling pin, roll the pastry out between two pieces of grease proof paper to a 16x24cm rectangle. Then slice down the middle to create 2 long and thin pieces of pastry.
For the filling, boil the sweet potato and butternut squash in a pan for 15 minutes or until soft.
Drain the excess water, mash and set aside.
In a frying pan, add the oil, red onion, pepper, garlic and basil and cook over a medium heat for 10 minutes or until soft.
Mix the onion and pepper mixture into the sweet potato mash until thoroughly combined.
Spoon the mixture along the middle of the pastry strips and top with the Violife Mozzarella flavour, grated.
Fold the pastry edges over, lengthways to cover the filling and gently press the edge of the pastry to seel.
Slice 1cm off each end of the pastry roll and discard.
Slice each roll into 8 equal pieces and place on a lined baking tray.
Brush with ProZero and bake in the oven for 25 minutes or until golden brown.
Set aside and allow to cool.
Enjoy hot or cold.
Add chili to the filling for a spicy kick!
Fate Low Protein All-Purpose Mix and ProZero are foods for special medical purposes and should be used under medical supervision.