It’s an old traditional family pie (pirog) recipe, stuffed buns (piroshki), made with, at least, three different fillings (sweet or not) in identical shapes, so you never know which one you’ll eat. I made my pie with cabbage, carrot and apple fillings. Will be great with meat, or rice, or jam, or any other kind of fillings too.
No one know why in Russia this dish named julien, it’s great hot appetizer and start for dinner. One small tip, how to add more mushroom taste – soy sauce.