Pungent salted fish and diced chicken lend an intensely savory umami to this Cantonese-style fried rice. A protein-rich family favorite in Southern China, its bold flavor means a little goes a long way.
Dice the chicken breast into ½-inch cubes and finely chop the salted fish. Slice green onions thinly, reserve greens for garnish, and dice onions.
Heat 1 tablespoon of vegetable oil in a wok over medium-high heat. Add the salted fish and stir-fry until fragrant and golden, about 1–2 minutes. Push to the side.
Add the diced chicken breast and stir-fry with the salted fish for 2–3 minutes until chicken is just cooked. Remove both from the wok and set aside.
Add remaining vegetable oil, then stir-fry diced onion and frozen peas for 1 minute. Push to the side of wok.
Beat eggs. Pour into center of the wok, let set for 20 seconds, then scramble until just set. Add chilled rice, using high heat to ensure separation. Stir-fry for 3 minutes.
Return chicken and salted fish to the wok. Add soy sauce, oyster sauce, and white pepper. Stir vigorously on high heat for 2–3 minutes to combine evenly and heat through.
Sprinkle in green onions, drizzle with sesame oil, and toss well. Taste and adjust seasoning as desired. Serve hot, garnished with reserved green onions.