Here’s the Okonomiyaki story from Mike’s recommended website:
Okonomiyaki , お好み焼き, essentially means; my favorite foods, or just what I like, grilled. It gets called Japanese pancake, Japanese pizza, and many other names. It’s a pretty free-style food. Add in what ever is on hand, chicken, pork, shrimp, various veggies, what ever you like.
There are two styles, Hiroshima, made with noodles. I haven’t yet tried making this type. And Osaka style, which I have made at home several times.It’s basically chopped cabbage and onions, plus whatever you want to add. On my first attempt I started with the information from this website, using substitute ingredients I did not have. My local Asian Mart does not have Okonomiyaki flour or sauce. They do have Kewpie Japanese mayonnaise. Recommended if you can get it.
Runnyrunny999 gives a quick way to make a substitute Okonomiyaki sauce, he is frequently entertaining, and not being a professional chef he demos the same mistakes you may make the first few times you try making it at home. Give it a go. I haven’t made any since before the holidays, and getting the urge to eat it again.
Osaka style is a little easier to make because everything is stuck together with the dough :
And here’s Runnyrunny not so gracefully making Hiroshima style: