Wash cucumber, onion, carrot, and cabbage thoroughly and slice into bite-sized pieces.
Crack the eggs into a bowl, add a pinch of salt, and mix well.
Add oil to a pan and preheat over medium heat.
Stir-fry the onion, carrot, and cabbage first for 2~3 minutes.
Add the cucumber and stir-fry for an additional 1 minute.
Pour the beaten eggs into the pan and stir-fry everything evenly together.
Season with salt and pepper to taste and finish.