Step 1: Preheat the oven - Start by preheating your oven to 425 degrees. You want it nice and hot so the rice can crisp up instead of just steaming.
Step 2: Spread the rice - Take your cooked and cooled rice and spread it out evenly on a large sheet pan. Break up any clumps with your hands so everything cooks evenly.
Step 3: Season the chicken - In a bowl, toss the diced chicken with olive oil, garlic, salt, and black pepper. Make sure every piece gets coated. This is where a lot of the flavor starts building.
Step 4: Combine on the pan - Spread the seasoned chicken over the rice, then scatter the peas and carrots across the pan. Try to keep everything in a single even layer so it cooks properly.
Step 5: Add the sauce - Drizzle the soy sauce and sesame oil over everything. Do not worry about mixing it yet, the oven will help bring it all together.
Step 6: Bake - Place the sheet pan in the oven and bake for 15 minutes. This is when the magic starts happening. The rice begins to crisp and the chicken cooks through.
Step 7: Add the eggs - Carefully remove the pan from the oven. Pour the beaten eggs over the rice and quickly stir everything together. Work fast so the eggs start scrambling right away from the heat.
Step 8: Finish baking - Return the pan to the oven for another 5 minutes. This finishes cooking the eggs and deepens the flavor of the rice.
Step 9: Garnish and serve - Take the pan out and sprinkle sliced green onions over the top. Give it one last gentle toss and serve it up warm.