That being said, here's what we have (clockwise): green onions, shrimps, leftover lechon kawali, egg, shredded cabbage. I was hoping for some octopus, but I couldn't find one available in S&R. They sometimes have takoyaki-cut octopus available. Maybe next time, I guess. I just have to make do with what I have in the kitchen.
Now that I have all my ingredients in place, I just have to follow the recipe in the okonomiyaki flour package:
1 pack (200g) of okonomiyaki flour
1 1/2c water
Mix the 3 ingredients, then add whatever you want. The okonomiyakis that I've tried have green onions and cabbage. Cook the mixed batter like you would a pancake.