Wikipedia
Smorgastarta is a dish of Swedish origin popular in Sweden, Estonia (as "võileivatort") and Finland (as "voileipäkakku"). It is a savoury cake that is similar to a sandwich, but with large amounts of filling and garnish, similar to a layered cream cake.
A smorgastarta is normally made up of several layers of white or light rye bread with creamy fillings in between. The fillings and toppings vary, but egg and mayonnaise are often the base, additional filling may vary greatly but often includes one or more of the following: liver pâté, olives, shrimp, ham, various cold cuts, caviar, tomato, cucumber, grapes, lemon slices, cheese and smoked salmon.
Smorgastarta is served cold and cut like a dessert cake. The types of sandwich cakes vary from meat, fish, combinations of cheeses and meats to vegan. The top garnish often reflects the ingredients used as a filling. Voileipäkakku (in Finnish) is part of family gathering dishes from birthday parties, weddings or funerals in Finland.
cake Voileipäkakku IM7638 C.JPG|Side view of a sandwich cake cake with cream cheese icing and chives, boiled egg yolk, wood sorrel leaves, tomatoes and flowers for decoration.