Heat 1 tablespoon of vegetable oil in a large skillet or wok over high heat.
Add beaten eggs and scramble until just cooked, then remove from pan and set aside.
Add remaining 2 tablespoons oil to the pan and add frozen vegetables and garlic, cooking for 3-4 minutes until vegetables are heated through.
Add the rice to the pan, breaking up any clumps, and stir-fry for 3-4 minutes until rice is heated and starting to crisp slightly.
Add soy sauce, sesame oil, and ground ginger, stirring to coat all the rice evenly.
Return scrambled eggs to the pan along with green onions, tossing everything together for another minute.
Season with salt and pepper to taste and serve immediately.