Cut the pork belly into bite-sized pieces.
Slice the onion, green onion, and carrot into easy-to-eat sizes.
Make the marinade with low-sugar gochujang, low-sugar soy sauce, minced garlic, black pepper, and olive oil.
Add the marinade to the pork and vegetables and let them sit for 10 minutes.
Heat a pan over medium heat, add olive oil, and stir-fry the marinated pork and vegetables.
Once the ingredients are cooked, plate and serve.