Take the puff pastry out of the freezer to start to thaw.
Line two baking trays with baking paper and set them aside.
Mix mince and sausage mince together in a large bowl. Add the breadcrumbs, carrot, onion and salt and pepper to the meat mixture and mix together until combined.
Layout puff pastry on a cutting board, and cut in half with a sharp knife.
Spoon mixture onto the pastry and work into a long, log shape, down the length of the pastry.
Make an egg wash by adding one egg and a dash of water to a small bowl, then whisking it together with a fork.
Using a pastry brush, run the egg wash down one edge of the pastry, then fold over the pastry to form a roll. Then brush egg wash over the top of the roll.
With a sharp knife, cut in half, then halves again, making four sausage rolls per half sheet of puff pastry. Transfer to a baking sheet and sprinkle sesame seeds over rolls.
Once all assembled, put in the oven and cook for 20-25 minutes, until golden brown and crisp.
Take out of the oven and cool on a wire rack or serve immediately.
Notes
These are so easy to make and make a heap.
They are great as finger food at a barbecue or a birthday.
These freeze beautifully in an airtight container for up to 3 months.