01 - Combine beef slices with 1 tbsp soy sauce, cornstarch, and sesame oil. Mix thoroughly and let marinate for 10 minutes.
02 - Heat 1 tbsp vegetable oil in a large wok or skillet over high heat. Stir-fry the beef for 1 to 2 minutes until browned. Remove beef and set aside.
03 - Add remaining 1 tbsp vegetable oil to the pan. Stir-fry garlic, ginger, and scallion whites for 30 seconds until fragrant.
04 - Add diced carrot and bell pepper. Stir-fry for 2 to 3 minutes until slightly tender. Add peas and cook for another minute.
05 - Push vegetables aside. Pour beaten eggs into the cleared area and scramble until just set. Combine eggs with vegetables.
06 - Incorporate chilled rice into the pan. Stir-fry for 2 to 3 minutes, breaking up clumps and mixing evenly.
07 - Return cooked beef to the pan. Add soy sauce, oyster sauce, toasted sesame oil, and white pepper if using. Toss to combine and heat through for 1 to 2 minutes.
08 - Remove from heat, garnish with scallion greens, and serve immediately.