Place the roughly chopped carrot and zucchini and the halved onion into the Thermomix bowl. Mix until finely grated.
Place the grated vegetables into a fine sieve. Use the spatula to press the mixture until all of the liquid has been removed. Place the vegetables onto paper towel and squeeze out ALL remaining moisture. Return the grated vegetables to a dry Thermomix bowl.
Add the meats, sauces and garlic and mix on REVERSE until combined.
Place a sheet of puff pastry onto a board and cut in half. Place 1/12th of the mixture onto each half. Roll to enclose
Cut the sausage rolls into smaller pieces. Brush the lightly beaten egg over the top of the sausage rolls and sprinkle with sesame seeds. Bake for 25 minutes or until the sausage rolls are crispy, golden and cooked through.