Clean and cut the squid into bite-sized pieces.
Slice onion, green onion, carrot, and other vegetables into bite-sized pieces.
Heat oil in a pan and stir-fry the squid and vegetables.
Add gochujang (Korean red chili paste), soy sauce, sugar, minced garlic, and red pepper powder, then stir-fry together.
Once cooked through, finish with sesame oil and a sprinkle of sesame seeds.