Cut the pork into bite-sized pieces and slice the onion and green onion.
Mix gochujang (Korean chili paste), chili powder, low-sugar soy sauce, minced garlic, oligosaccharide syrup, pepper, and sesame oil to make the seasoning sauce.
Add the seasoning sauce to the pork and marinate for 30 minutes.
Heat olive oil in a pan and stir-fry the pork.
Add the onion and green onion and continue to stir-fry together.
When the pork is fully cooked, turn off the heat and finish with a drizzle of sesame oil.