In particular, broiled fish, a Japanese style omelet, kamaboko or fish sausage (the above together are sometimes called the three sacred imperial treasures of Makunouchi-bento), deep-fried food, Japanese pickles and boiled and seasoned food can be seen in many Makunouchi-bento as they are the typical accompanying dishes of Makunouchi-bento.
特に焼き魚・玉子焼き・蒲鉾（以上の3つを総称して幕の内弁当三種の神器とも）・揚げ物・漬物･煮物は大半の幕の内弁当に入れられており、幕の内弁当の代表的なおかずであるといえる。