Casserole is a dish that belongs to traditional Russian cuisine. However, the roots go back to medieval France. The chefs decided to combine the remnants of the previous meal into one dish - and this is how the popular casserole came about. Initially, this dish was the food of the poor, and after a while, when the recipe was transformed, the casserole began to be served in high circles. In the modern world, a casserole is a common dish that is prepared with the addition of potatoes, meat, mushrooms, vegetables, cheese, berries, fruits, and seafood.