Pre-heat oven to 180ºC / Gas Mark 4. Divide the dough into 10 x 100g balls. On a floured surface, roll out the balls into flat circles.
Mix the tomato paste and the Schwartz for Chef Arrabbiata Seasoning together in a bowl and smooth 25g of this paste over each dough circle. Top each circle with 75g grated cheddar and fold in half. Seal the edges together, place on a lightly greased baking tray and cook for 10 minutes.