Coulibiac
A coulibiac (Russian: кулебяка, romanized: kulebyaka [kʊlʲɪˈbʲakə]) is a type of pirog usually filled with salmon or sturgeon, rice or buckwheat, hard-boiled eggs, mushrooms, onions, and dill. The pie is baked in a pastry shell, usually of brioche or puff pastry.