Cut the pork collar into bite-sized pieces.
Make the marinade (soy sauce, gochujang, minced garlic, sugar, sesame oil, black pepper) and mix it thoroughly with the pork.
Julienne the vegetables (such as carrot, cucumber, avocado, onion) into thin strips.
Heat oil in a pan and grill the marinated pork over high heat until browned.
Place rice in a bowl and top with the vegetables and grilled pork.
Finish by drizzling poke sauce (mayonnaise, a bit of gochujang, etc.) as desired.