Cut the cabbage 3 cm long and thinly slice, roughly 0.3 cm thick.
In a bowl, mix the flour, dashi, and egg
Peel the nagaimo and grate. Add the nagaimo and cabbage into the flour mix.
Heat a fry pan to medium high heat and add the vegetable oil.
Add 2 ladles of the batter into the fry pan. and spread out into a circle.
Place your favored ingredients on top. Cook till the bottom is golden brown.
Flip over and wait till cooked through.
Serve on a plate and top with okonomi sauce, mayonnaise, green onion, and nori.