Finely chop the cabbage and green onion.
Mix flour, eggs, and water to make the batter.
Add the prepared vegetables, pork, shrimp, and other ingredients to the batter and mix.
Heat oil in a pan and spread the batter thinly. Cook until golden brown.
Flip and cook the other side.
Drizzle okonomiyaki sauce and mayonnaise over the top.
Sprinkle with bonito flakes and seaweed powder.