Clean the squid thoroughly and cut it into bite-sized pieces.
Julienne the onion, green onion, and carrot.
Mix soy sauce, sugar, minced garlic, chili powder, and sesame oil to make the seasoning sauce.
Heat cooking oil in a pan and add green onion to infuse flavor.
Add squid and vegetables to the pan and stir-fry.
Add the seasoning sauce and quickly stir-fry over high heat.
Finish by sprinkling sesame seeds on top.