Cut the pork and vegetables into bite-sized pieces.
In a bowl, mix soy sauce, gochujang, gochugaru, minced garlic, erythritol, and sesame oil to make the marinade.
Add the marinade to the pork and mix well. Let it marinate for 10 minutes.
Heat a pan with cooking oil and stir-fry the marinated pork.
Add onion, green onion, and carrot, and stir-fry together.
Once ingredients are cooked, plate and serve.