In a small bowl, whisk together the gochujang paste, coconut aminos, rice vinegar, minced garlic, and grated ginger until smooth.
Place a large skillet over medium-high heat and add the thinly sliced pork belly, cooking until the fat renders and the edges become golden and crispy.
Add the cubed pork loin to the skillet with the pork belly and sauté for 5-6 minutes until the loin is cooked through and lightly browned.
Pour the prepared gochujang sauce over the meat and toss for 1-2 minutes until the sauce reduces into a thick, sticky glaze that coats every piece.
In a separate pan, lightly sauté the cauliflower rice with the toasted sesame oil for 3-4 minutes until tender but still holding its shape.
Divide the cauliflower rice into serving bowls and top with the glazed pork mixture.
Garnish the bowls with sliced cucumber, kimchi, toasted sesame seeds, and thinly sliced green onions before serving.