Cut the duck meat and vegetables into bite-sized pieces.
Add oil to a pan and heat it thoroughly.
Add the duck meat first and stir-fry over medium heat.
When the duck is about halfway cooked, add the prepared vegetables and stir-fry together.
Add seasonings such as soy sauce, gochujang, minced garlic, and sugar, then stir well as you fry.
Once everything is cooked, finish by adding sesame oil and sprinkling sesame seeds on top.