Cut the cold pork into half-inch cubes.
Heat the cooking oil in a frying pan or wok.
Add the pork, cook until reheated then throw in the vegetables. Stir fry (over very high heat, naturally) for a couple of minutes.
Add the rice and season with salt and pepper. Cook, stirring, until the rice is heated through.
Make a well in the center and pour in the beaten eggs.
Let the eggs cook without letting the rice and vegetables get mixed in, stirring often, until firm but still moist. Toss everything together until the eggs are cooked through.
Taste the fried rice and add more salt and pepper, if you think that's necessary.