Start by melting 1 tablespoon of butter in a large sauté pan over medium-high heat.
Whisk the eggs and pour them into the pan.
Scramble them gently until set.
Remove them from the pan and set aside.
Add another tablespoon of butter to the pan and let it melt.
Toss in the diced onion, carrots, peas, and minced garlic.
Sauté them until the vegetables are soft and fragrant.
Add the day-old rice to the pan, breaking up any clumps with your spatula.
Mix well so that the vegetables are evenly distributed throughout the rice.
Return the scrambled eggs to the pan, stirring them into the mix.
Pour soy sauce over the top, ensuring even distribution.
Stir to combine all ingredients thoroughly.
Season with salt and pepper according to taste.
Give it a final stir, making sure everything is heated through.
Serve piping hot straight from the pan.