01 - Combine thinly sliced beef, 1 tablespoon soy sauce, 1 teaspoon cornstarch, and 1 teaspoon sesame oil in a bowl. Mix well and let marinate for 10 minutes.
02 - Heat 1 tablespoon vegetable oil in a large wok or skillet over high heat. Stir-fry marinated beef for 1 to 2 minutes until browned. Remove and set aside.
03 - Add remaining 1 tablespoon vegetable oil to the same pan. Stir-fry garlic, ginger, and scallion whites for 30 seconds until aromatic.
04 - Add diced carrots and red bell pepper; stir-fry 2 to 3 minutes until slightly tender. Incorporate frozen peas and cook for an additional minute.
05 - Push vegetables aside, pour in beaten eggs into cleared space, and scramble until just set. Mix eggs with vegetables thoroughly.
06 - Add chilled rice to the pan, breaking up any clumps, and stir-fry for 2 to 3 minutes to combine evenly.
07 - Return cooked beef to the wok. Add soy sauce, oyster sauce, toasted sesame oil, and white pepper if desired. Toss to combine and heat through for 1 to 2 minutes.
08 - Remove from heat, sprinkle with scallion greens, and serve immediately.