OKONOMIYAKI — HIROSHIMA STYLE
It's ... "What You Want!"
You'll have to go shopping for some of the specific ingredients. But, the dish has as many variants as there are cooks to make it. Do what you like. But, it's a good idea to go with the pros; at least, first time out.
Do look around the WWW for a version that pleases you.
PS Sorry about that mind numbing video soundtrack.