01 - Dice all vegetables, beat eggs in a small bowl, and ensure rice is thoroughly chilled with grains separated for optimal stir-frying texture.
02 - Heat 1 tablespoon vegetable oil in a large wok or skillet over medium-high heat. Pour in beaten eggs and scramble quickly until just set but still moist. Remove eggs and set aside on a plate.
03 - Add remaining oil to the hot wok. Stir-fry diced onions, minced garlic, and grated ginger for 1-2 minutes until fragrant and onions begin to translucent.
04 - Add diced bell pepper and thawed peas and carrots. Stir-fry for 2-3 minutes until vegetables are just tender-crisp. Avoid overcooking to maintain texture.
05 - Increase heat to high. Add cold rice to the wok, breaking up any clumps with the spatula. Stir-fry for 2-3 minutes, tossing constantly until rice is heated through and slightly toasted at edges.
06 - Add cooked protein (if using) and scrambled eggs back to the wok. Toss everything together to distribute evenly.
07 - Pour soy sauce, oyster sauce, sesame oil, and pepper over the rice mixture. Toss vigorously to coat every grain thoroughly. Stir in green onions and heat for 1 minute. Taste and adjust seasoning with additional salt or soy sauce as needed.
08 - Transfer to serving bowls or plates immediately while piping hot. Garnish with additional green onion slices if desired. Serve alongside grilled meats, spring rolls, or enjoy as a complete meal.