Dice the pork belly into small cubes and sear in a large skillet over medium-high heat until the fat renders and the edges are crispy.
Remove the pork from the pan, leaving about a tablespoon of fat in the skillet, and sauté the garlic, ginger, and the white parts of the sliced green onions until fragrant.
Add the chopped kimchi and gochujang to the skillet, cooking for 2 minutes while stirring to caramelize the mixture.
Stir in the cooked brown rice and cauliflower rice, pressing the mixture down with a spatula to ensure it absorbs the flavors and develops a slight crust.
Return the crispy pork belly to the pan, drizzle with coconut aminos and toasted sesame oil, and toss everything together until evenly combined.
In a separate non-stick pan, fry the eggs until the whites are fully set but the yolks remain runny.
Divide the fried rice into bowls and top each with a fried egg, the remaining green onion tops, and a sprinkle of black sesame seeds.