Clean the squid thoroughly and cut it into bite-sized pieces.
Cut the tofu into appropriate sizes.
Julienne the onion, green onion, and carrot.
Heat cooking oil in a pan and stir-fry the green onion first to release its aroma.
Add the squid and stir-fry over high heat.
Add the vegetables and stir-fry together.
Add the tofu and gently mix over low heat.
Add soy sauce, gochujang, sugar, and other seasonings, and mix evenly.
Once all the ingredients are cooked, the dish is ready.