01 -
Preheat your oven to 350°F.
02 -
Dice the onion, carrot, celery, and potato into 1 cm cubes.
03 -
Heat olive oil in a frying pan over medium heat. Sauté the diced vegetables with chopped rosemary for about 8 minutes. Add minced garlic in the last minute of cooking. Remove from heat and let cool.
04 -
In a large bowl, combine the cooled vegetables with minced beef, half the beaten egg, salt, and pepper. Mix until well combined.
05 -
Roll out the puff pastry into a rectangle, approximately the size of a small tea towel.
06 -
Shape the meat mixture into a log and place it along one long edge of the pastry.
07 -
Brush the edges of the pastry with some of the remaining beaten egg. Roll the pastry tightly around the meat log, sealing the ends.
08 -
Place the roll seam-side down on a baking tray lined with parchment paper. Brush the top with the remaining beaten egg.
09 -
Bake in the preheated oven for 1 hour, or until the pastry is golden brown.
10 -
Let cool slightly before slicing. Serve with your favorite gravy.