Lanttulaatikko or kålrotslåda is a swede casserole that is a traditional Christmas dish in Finland. It is usually served with other casseroles at the Christmas table as a side dish to ham, fish or other meats.
Traditional lanttulaatikko is made of boiled and mashed swede, sweetened and enriched with a mixture of bread crumbs, egg, cream, treacle, butter, and seasoned with salt and various spices (such as ginger, cinnamon and nutmeg). This mixture is placed in a casserole dish, often with a decorative pattern forked over it (or topped with more bread crumbs). It is then baked in a low oven at 175 °C (347 °F) for an hour and a half.