In a large skillet, heat the oil over medium heat.
Once hot, saute the onion until beginning to soften.
Add in the garlic and stir.
Once fragrant and beginning to brown, add in the kimchi. Stir.
Add the peas and stir to combine. Cook 1 minute.
Add the cooked rice to the pan and stir to combine. Cook for 2 minutes.
Add in the kimchi juice, soy cause, oil, pepper, and green onion.
Cook, stirring occasionally, for about 5 minutes (until the rice is heated through, the peas are cooked and the flavours a developed).
Serve hot. You can provide gochujang (Korean hot sauce), sriracha, or soy sauce, if desired.
Notes
This recipe cooks up MUCH better if you use day-old rice, leftover in your fridge. If you use freshly cooked rice, the dish will still taste fine but it may be a bit soggier or stickier.