Cut the pork into bite-sized pieces.
Thinly slice the onion, green onion, hot green chili, and carrot.
In a bowl, mix together gochujang, red pepper powder, soy sauce, minced garlic, stevia, sesame oil, and black pepper to make the seasoning sauce.
Add the seasoning sauce to the pork and mix thoroughly. Let it marinate for 10 minutes.
Heat cooking oil in a pan and stir-fry the green onions first to release the aroma.
Add the pork and vegetables to the pan and stir-fry over high heat.
Once the pork is cooked through and the seasoning is well absorbed, serve on a plate.