Omurice is said to have originated around the turn of the 20th century at a western style restaurant in Tokyo's Ginza district called Renga-tei, inspired by chakin-zushi.
Omurice siges at stamme fra begyndelsen af det 20. århundrede fra en restaurant i vestlig stil i Tokyos Ginza-distrikt kaldet Renga-tei og inspireret af chakin-zushi.