Wash the carrot, abalone, onion, and tomato thoroughly and cut them into bite-sized pieces.
Add cooking oil to a pan and stir-fry the carrot and onion first.
When the onion and carrot are slightly cooked, add the abalone and continue stir-frying.
Once the abalone is cooked, add the tomato and season with salt and pepper.
When all ingredients are evenly cooked, transfer to a plate and serve.