In a large skillet over medium-high heat, add the diced pork belly and cook until the fat renders and the edges are golden and crispy.
Remove the pork belly from the pan, leaving about 1 tablespoon of the rendered fat in the skillet for flavor.
Add the minced garlic and the white parts of the sliced green onions to the skillet, sautéing for 30 seconds until fragrant.
Stir in the cauliflower rice, cooked brown rice, and chopped kimchi, cooking for 3-4 minutes until the cauliflower rice is tender.
Push the rice mixture to the side of the pan and crack the eggs into the empty space, scrambling them until just set before mixing into the rice.
Whisk together the gochujang and coconut aminos in a small bowl, then pour over the rice mixture, stirring well to incorporate.
Return the crispy pork belly to the pan, drizzle with toasted sesame oil, and season with sea salt and black pepper.
Garnish with the remaining green onion tops and serve immediately.