Sushi Cake (寿司ケーキ) is not typical Japanese food you find at Japanese restaurants at all.  Before anything, it is not a dessert.  Sushi Cake is Sushi Rice molded and decorated with fish and vegetables so it looks like a cake.  It is very colorful and festive, and a great dish for a celebration of some sort. It looks a little complicated, but it is quite easy to make it at home.  Actually, it’s much easier than Sushi rolls.  Besides, you may not even be able to find it at any shops or restaurants, so you may have to make it if you would like to try this dish.