Roll And Spiral
Preheat an oven to 200°C.
Press the rice and lentil mixture into a sausage right along the length of the pastry but in the third nearest you.
Brush all over the pasty with more butter, then roll it up, away from you to create a huge sausage roll.
Coil the sausage around on itself, starting with the middle and rolling it outwards, then transfer to a baking paper lined baking sheet.
Brush all over with more butter and sprinkle with sea salt.