Bring a small pot of water to a boil, carefully lower the egg into the water, and simmer for 7 minutes before transferring to an ice bath.
In a large skillet over medium-high heat, cook the diced pork belly until the fat renders and the edges become golden and crispy.
Add the thinly sliced pork tenderloin to the skillet, seasoning with garlic powder and ginger powder, and sear until cooked through.
In a small bowl, whisk together the gochujang, coconut aminos, rice vinegar, and sesame oil to create a smooth, spicy glaze.
Pour the glaze over the meat in the skillet, tossing well to coat every piece until the sauce thickens slightly.
Remove the meat from the pan and quickly sauté the cauliflower rice and baby spinach in the remaining juices until the greens are wilted.
Peel the soft-boiled egg and slice it in half.
Assemble the bowl by layering the cauliflower rice and spinach, topping with the spicy pork mixture, the egg, sliced green onions, and sesame seeds.