Cut the pork into bite-sized pieces.
Slice vegetables such as onion, bell pepper, and scallion.
Heat cooking oil in a pan and stir-fry the pork.
When the pork is about halfway cooked, add the vegetables and stir-fry together.
Add the seasonings—soy sauce, red pepper powder, minced garlic, pepper, and erythritol—and stir-fry.
When everything is fully cooked, place it on a plate.