Whisk gochujang, tamari, honey, rice vinegar, grated ginger, and minced garlic in a small bowl until smooth.
Cut the pork tenderloin into small 1-inch cubes and season with sea salt and black pepper.
Heat the toasted sesame oil in a large skillet over medium-high heat until shimmering.
Add the pork cubes to the skillet and sear for 5-6 minutes, turning occasionally until golden brown and crispy on all sides.
Pour the gochujang sauce mixture over the pork and toss to coat, simmering for 2 minutes until the sauce becomes thick and sticky.
In a separate pan, lightly sauté the cauliflower rice for 3-4 minutes until tender but still firm.
Divide the cauliflower rice into a serving bowl and top with the glazed pork.
Add the kimchi, sliced cucumbers, and sliced green onions to the bowl.
Garnish with sesame seeds and serve immediately.