Wash and slice the green onions, separating the white parts from the green.
Peel and roughly chop the fresh garlic.
Heat the oil in a large skillet or wok over medium heat.
Add the chopped garlic and the white parts of the green onions. Sauté until they turn fragrant and golden, about 1-2 minutes. Ensure your fried garlic is golden brown and not burnt, as it turns bitter.
Increase to medium-high heat and add the cold rice. Stir-fry for a few minutes until the rice is well coated with oil and heated through. If you need to break clumps of rice, wet your hands with water or oil so it doesn't stick to them.
Drizzle the soy sauce over the rice and stir to combine thoroughly. Season with salt and pepper to taste.
Break the egg in a bowl and beat it with some salt and pepper.
It is now time to add the beaten egg. You can either move the garlic fried rice to the side and cook the egg as a thin omelet, or pour the beaten egg over the rice, stirring quickly to cook and distribute the egg evenly through the rice. You can choose your preferred method for this step, keeping in mind that, if pouring the mixture over the rice, you will need to move incredibly fast.
Once the garlic rice is hot and slightly crispy, toss in the green parts of the onions and add the ajinomoto. Stir everything together and adjust the seasoning if needed.
Remove the garlic fried rice from the heat and serve immediately. Enjoy!