I always start with rice that has been chilled in the fridge (ideally leftover from the day before). If using vegetables, chop them now so they’re ready to go.
In a hot skillet, melt the butter with a splash of oil over medium-high heat. Toss in onions, carrots, peas (or any veggies) and cook for about 2 minutes until just tender.
Once veggies are softened, stir in the minced garlic, then push them aside and pour in the whisked eggs. Scramble them gently and let them mix with the veggies.
Spread the chilled rice across the skillet, pour in the soy sauce, and toss everything together to coat evenly. Let some rice sit undisturbed so edges crisp a little before stirring again.
Taste and season with salt and pepper as needed. Finish with optional garnishes like sliced green onions or sesame seeds, then serve while hot.