Beat the eggs and season with a little salt and pepper.
Chop tomato, shrimp, and green onion, then mix with the beaten eggs.
Stir-fry in cooking oil and set aside.
In 1 cup of water, add soy sauce, oyster sauce, and sugar, bring to a boil, and thicken with cornstarch slurry (1 part starch + 2 parts water).
Pour the sauce and serve with rice.