Remove the ready rolled puff pastry from the fridge.

Grate the vegetables or chop them up very small

Roll out the puff pastry and spread the tomato puree all over, according to taste

Sprinkle over the grated veg and top with the grated cheese

Roll into a swiss roll shape

Cut into 2cm thick slices and place on a baking tray lined with greaseproof paper

Cook them at 180 degrees for 20 minutes or until they are puffed up and golden brown.