Mist a large non-stick wok or skillet with cooking spray over medium heat. Add half of the minced garlic and cook until golden brown and crispy, then remove and set aside.
Increase heat to medium-high. Add the diced chicken to the pan and cook for 6-8 minutes until golden and the internal temperature reaches 165°F (74°C). Remove chicken and set aside.
Re-spray the pan if necessary. Add the remaining garlic and grated ginger, sautéing for 30 seconds until fragrant.
Add the frozen peas and carrots to the pan and stir-fry for 2 minutes.
Push the vegetables to one side of the pan. Pour the beaten eggs into the empty space and scramble until fully cooked.
Add the chilled rice and cooked chicken back into the pan. Pour in the soy sauce, oyster sauce, and sesame oil.
Toss all ingredients together over high heat for 3-5 minutes, allowing the rice to toast and incorporate the flavors.
Season with white pepper and garnish with sliced green onions and the reserved crispy garlic before serving.