Preheat your oven to 210 degrees and line two trays with baking paper.
Remove the puff pastry from the freezer and set aside to thaw slightly.
Lightly whisk egg in a small bowl or mug - set aside.
In a large bowl using a metal spoon, combine the chicken mince, zucchini, carrot, corn kernels, mixed herbs, onion flakes, salt and pepper, 1 egg and the tasty and parmesan cheese until well combined.
Remove plastic from pastry sheet and cut in half with a sharp knife and brush long edges of pastry with egg.
Scoop the mince mixture and position in the middle of the pastry sheet
Carefully roll the pastry over the top of mince mixture to fully enclose it. Cut the chicken and cheese sausage rolls into four pieces.
Brush the tops with a little of the beaten egg and sprinkle with poppy seeds (optional) and place on a tray lined with baking paper.
Place in oven and bake for 25 - 30 minutes or until pastry is crisp, golden and the chicken and cheese sausage rolls are cooked through.