Best restaurants you can enjoy Tamagoyaki [たまご焼き:Tamagoyaki] in Japan! Tamagoyaki, literally means "grilled egg", is also known as tamago or dashimaki. They are a type of Japanese omelette cooked by rolling up layers of beaten eggs, and it is usually seasoned by sugar or soy sauce. Tamagoyaki is topped in bento box sold in any stores, and you can also find it as side dish in Japanese restaurants.