Cut the pork collar into bite-sized pieces.
Julienne the onion, green onion, and carrot.
Marinate the pork collar with soy sauce, sugar, minced garlic, black pepper, sesame oil, red pepper flakes, and other seasonings.
Heat cooking oil in a pan and add the marinated meat and vegetables.
Stir-fry over medium heat until the meat and vegetables are cooked through.
Plate and garnish with sesame seeds to finish.