Preheat oven to 200ºC and line a baking tray with baking paper.
Place carrot, onion, garlic, bread crumbs, fennel seeds, Dijon mustard, Worcestershire sauce and salt into TM bowl and blitz 5 sec/speed 7. Add meat and mix 8 sec/speed 5.
Cut pastry sheets in half lengthways (will end up with 6 strips).
Divide meat mixture between each pastry strip and spread out in the middle.
Roll and cut each strip into mini sausage rolls (4-6 pieces per strip).
Brush with milk. Sprinkle with seeds (if using). Bake for 20 minutes or until golden brown.