Crack the eggs and whisk them well
Finely chop vegetables such as onion and carrot
Add salt and the chopped vegetables to the eggs and mix well
Add cooking oil to a pan and preheat it
Pour the egg mixture into the pan and spread it thinly
When the bottom is cooked, start rolling from one end
Add the remaining egg mixture and continue rolling until done
Place on a cutting board, let cool, then cut into bite-sized pieces