Rolada z kurczakiem i pieczarkami is a mushroom-stuffed chicken roulade in an egg-cheese coating. It is usually made with thin chicken breast slices that are topped with fried mushrooms and onions, and then rolled up and baked in an egg-cheese batter.
It is best to bake the roulade in a keksówki pan in order to preserve its form, even though it can also be baked in a regular baking sheet. Meat roulades (or zrazy in Polish) are traditionally made with beef, pork, or veal, but they can also be made with poultry as in this case.