Steps
1. Heat sesame oil in a pan over medium heat.
2. Add diced chicken breast, season with salt and pepper, and cook until browned and cooked through (about 5-7 minutes).
3. Stir in soy sauce and sriracha, cooking for an additional 2 minutes.
4. Remove from heat, then mix in the julienned carrot, diced bell pepper, and green onion.
5. Spoon the spicy chicken mixture onto the large lettuce leaf.
6. Garnish with sesame seeds if desired, then fold the lettuce around the filling and enjoy.