Dice the pork belly into 1/2-inch cubes and the pork tenderloin into 1-inch cubes.
Place the pork belly in a cold skillet over medium heat to render the fat until the pieces are golden and crispy.
Increase the heat to medium-high, add the pork tenderloin cubes, and sear until browned on all sides.
Stir in the gochujang, tamari, grated ginger, and garlic powder, coating the meat thoroughly until the sauce thickens and glazes the pork.
In a separate pan, lightly sauté the cauliflower rice with a pinch of sea salt and black pepper until tender.
Fry the egg in the remaining pork fat or a drop of sesame oil until the whites are set but the yolk remains runny.
Assemble the bowl by layering the cauliflower rice, the spicy pork mixture, kimchi, and the fried egg.
Garnish with sliced scallions and toasted sesame seeds before serving.