I've been mulling over the idea of a potato pancake with corned beef, and thought the addition of grated cabbage would make more like okonomiyaki. I used two grated potatoes, about a cup of cabbage, and a leftover chunk of corned beef--maybe half a pound. One egg, and a cup of flour, then enough water to make it sort of pancake consistency--maybe a cup? (my recipes are never precise). Put a thin layer of hot oil on the griddle, and pour a ladleful of batter. I just let it brown on one side and then flipped it, but checking a recipe online I should have put a lid on it and let it steam cook before flipping.
I ate it with Japanese mayonaise. It was pretty good, but I think it would have been better with only one potato. And I omitted all the other toppings, I think they might have been a good addition, especially the pickled ginger.