Preheat oven to 210°C bake. Line an oven tray with baking paper.
Place pastry on a sheet of baking paper. Spread pork grind out evenly across the pastry, leaving a 2cm border on the two long edges.
Grate cheese and sprinkle on top of the sausage meat. With the long end facing you, roll up pastry like you're making cinnamon rolls. Roll as tight as you can, then cut the roll in half, then in half again and again, making 8 pieces. Turn scrolls so they are rolled side up, brush pastry with milk and sprinkle over sesame seeds.
Bake for 20 – 25 minutes, or until golden and cooked through. After baking, immediately transfer to a baking rack to cool.