Cut the spicy chili peppers and aged kimchi into bite-sized pieces.
Julienne the vegetables such as onion, carrot, and green onion.
Heat cooking oil in a pan and stir-fry the chili peppers and aged kimchi over high heat first.
Add the vegetables and continue stir-frying, then season with salt and pepper to taste.
Once the vegetables have softened, turn off the heat and transfer to a plate.