Cut the pork hind leg into bite-sized pieces.
Prepare and slice the onion, green onion, and garlic.
Add oil to a pan and stir-fry the pork hind leg.
When the meat begins to cook, add the seasonings (gochujang, soy sauce, sugar, minced garlic, etc.).
Add the prepared vegetables and stir-fry together.
Once everything is evenly cooked, finish by drizzling with sesame oil.