Heat a large skillet or wok over medium-high heat and add 1 tablespoon of vegetable oil. Add the diced onion and sauté until translucent.
Add the garlic and cook for another minute until fragrant.
Push the sautéed onions and garlic to one side of the skillet, then pour in the beaten eggs. Stir frequently until fully cooked.
Add the remaining tablespoon of vegetable oil, and then add the cooked rice, green onions, peas, and carrots to the skillet. Stir to combine all ingredients.
Pour in the soy sauce and sesame oil. Stir well to combine and ensure the rice is evenly coated with the sauce.
Season with black pepper to taste and serve immediately.
Notes
This fried rice is perfect as a main meal or a side dish. For a heartier version, you can add cooked chicken, shrimp, or ham.