Slice the cabbage thinly for easy eating.
Slice the onion and carrot thinly as well.
Heat a pan and add cooking oil, then stir-fry the onion and carrot.
When the onion and carrot are halfway cooked, add the cabbage and stir-fry.
Season with salt, pepper, and soy sauce to taste.
When all the vegetables are cooked, turn off the heat.
Serve the cooked vegetables in a bowl.