01 - In a bowl, combine sliced beef with 1 tablespoon soy sauce, cornstarch, and sesame oil. Mix thoroughly and let stand while preparing other ingredients.
02 - Beat the eggs with a pinch of salt in a small bowl until smooth.
03 - Heat 1 tablespoon oil in a large wok or skillet over high heat. Stir-fry beef for 2 minutes until just browned. Remove beef from pan and set aside.
04 - Add 1 tablespoon oil to the pan. Stir-fry garlic and white parts of spring onions for 30 seconds until fragrant.
05 - Add diced carrot, peas, and red bell pepper to the pan. Stir-fry for 2 to 3 minutes until vegetables are tender-crisp.
06 - Push the vegetables aside and pour in beaten eggs. Scramble briefly then combine with the vegetables.
07 - Add cold rice, breaking apart any clumps. Stir-fry for 2 minutes until heated through.
08 - Return beef to the pan. Add soy sauce, oyster sauce, fish sauce if using, and white pepper. Stir-fry for 2 to 3 minutes until evenly mixed and hot.
09 - Adjust salt to taste. Stir in green parts of spring onions just before serving.