Cut the pork into bite-sized pieces.
Slice cabbage, onion, and green onion thinly.
Heat olive oil in a pan and sauté the green onion to bring out its aroma.
Add the pork and cook over medium heat.
Add the onion and cabbage, then stir-fry together.
Make the sauce using gochujang, soy sauce, erythritol, garlic, and pepper, and add it to the pan.
Stir-fry until the sauce blends well with the ingredients, then finish.