I tried making square takoyaki in a frying pan. It was delicious!

[Ingredients]
(Purchased at convenience stores)
60g boiled octopus x 2 *This will make 6 servings.
60g pickled ginger
50g fried tempura bits
30g chopped green onions
1 egg per serving
40g plain flour per serving
(Other)
100cc water per serving
Bonito stock granules
Takoyaki sauce as needed
Bonito flakes as needed
Green laver as needed
Mayonnaise as needed