Beat the eggs and set aside.
Finely chop the onion and green onion.
Add cooking oil to the pan and stir-fry the green onion to make scallion oil.
Add the chopped onion and stir until translucent.
Add the tomato puree and boil for 2-3 minutes.
Pour in the beaten eggs and stir gently to scramble.
Season with salt and pepper, then serve.