In a small bowl, mix together the oyster sauce, sesame seed oil, and hoisin sauce. Set aside.
Break up cold rice with a spoon, spatula, or your clean hands. Set rice aside.
Heat a wok pan to hot over high heat. Carefully add the peanut oil and tilt wok so that the oil covers the interior sides and bottom of the wok.
Add the onions, carrots and ham. Quickly stir fry for 2 minutes. Lower heat a little if necessary. Add the garlic and continue to stir fry for an additional minute. Add the frozen peas and stir to distribute evenly.
Pour the beaten eggs over the vegetable and ham mixture. Stir fry ingredients just until eggs are set. Add the rice and continue to stir fry until rice is heated through.
Pour the sauce mixture over the rice mixture. Stir fry until the sauce mixture is evenly distributed and rice is hot.
Serve immediately. Some guests may want to add additional sauces or oils. Suggested: soy sauce, oyster sauce, or sesame seed oil. Additional hoisin sauce may not work well because it is sweet.