Peel mushrooms and cut the bottom; roughly cut them; Cut off the broccoli florets and quickly rinse them under running water; roughly cut;Cut the shallot, spring onion, and the parsley;
Finely chop with a kitchen knife or with a food processor; If you use a food processor, use the pulse function to avoid pureeing the mixture;
Crack an egg and well combine in the mushrooms and broccoli mixture; lightly season;
Spoon a layer of the filling mixture onto the center of the puff pastry sheet; put the veal over it;
Continue to spread the mixture all around the veal piece until the meat is entirely coated;
Begin to wrap the veal in the puff pastry;
Fold the pastry around the meat and slightly wet to seal it;
Decorate as you wish; brush it with egg yolk; place in an oven dish;
Preheat the oven, 180°C
Scrub the potatoes clean; quickly rinse and dry; cut into chunky wedges; In an oven dish, coat the potatoes with two generous tablespoons of extra virgin olive oil; scatter with thyme, season with ground pepper and salt; too well to coat the wedges;
Bake for 40-45 minutes;Enjoy;
Steam green beans or greens peas to serve the dish with;