Schnitzel with mashed potatoes is very tasty Czech dish. Follow along with this cooking how to video to learn how to make it in your own home. Czech schnitzel and mashed potatoes are very easy to make. Watch this Czech girl as she shows you how to prepare it. The ingredients you need for schnitzel and mashed potatoes are: boiled potatoes, milk, salt, flour, eggs, pepper, salt, oil, chicken and bread crumbs.