Pat the pork tenderloin dry and cut into one-inch cubes to resemble traditional pork belly portions.
In a small bowl, whisk together the gochujang, tamari, sesame oil, honey, minced garlic, and grated ginger until smooth.
Toss the pork cubes in half of the gochujang marinade and let them marinate for at least ten minutes.
Thread the marinated pork cubes onto skewers, leaving a small space between each piece for even cooking.
Preheat a grill pan or outdoor grill to medium-high heat and ensure the surface is very hot.
Grill the skewers for three to four minutes per side, brushing with the remaining marinade until charred and caramelized.
Sauté the cauliflower rice in a non-stick pan with a pinch of sea salt until tender and slightly golden.
Toss the sliced cucumbers with rice vinegar and a pinch of salt to create a quick, cooling pickle.
Serve the skewers over the cauliflower rice and garnish with toasted sesame seeds and thinly sliced green onions.