In a bowl, mix gochujang, soy sauce, sesame oil, minced garlic, honey, and the white parts of the green onions until combined.

Heat a non-stick skillet over medium heat. Add ground beef and cook, breaking it apart, until browned and tender (about 6-8 minutes).

Pour the marinade over the cooked beef. Stir well to coat and cook for another 2-3 minutes to let flavors meld.

Stir in the green parts of the sliced green onions. Taste and adjust seasoning if needed.

Separate lettuce leaves, wash and pat dry. Spoon the beef mixture into each leaf.

Sprinkle with toasted sesame seeds and optional crunchy toppings. Serve immediately.