In a food processor add onion and blitz till finely chopped. Add roast pumpkin, chickpeas, silverbeet, parsley, carrot, paprika, salt and blitz till well combined. Mix through crumbled feta.
Cut pastry in half lengthwise and spoon mix onto middle section. Fold pastry over and cut to size (you will make 8 large rolls or 16 smaller).
Place onto a lined baking try - fold side down. Bake for 30 minute or until golden brown.