In Finland sandwich cakes are very popular and they're usually served on some special occasions or events. It's probably because this savory dish is very delicious, goes well with a great deal of other foods, and serves as a beautiful decoration on the table.
I made my cake with smoked turkey but there are endless variations of the fillings that you can make for this cake. For example, fish, vegetable, ham, and chicken all work really well also. The recipe was adapted from here.