Preparation Instruction: 1. Wash the tomatoes and scallions and cut them into small pieces; crack the eggs into a bowl, add salt, beat well and set aside. 2. Heat a wok with cooking oil, then saute the scallion and tomato under low heat; then add ketchup, soup stock, sugar and bring to a boil. Use cornstarch and water to thicken it and set it aside. 3. Heat up another pan with an appropriate amount of oil, first pour in the eggs and mix quickly until it begins to solidify, then add in the sauteed tomatoes and mix evenly.