Heat your skillet over medium-high heat until hot. Add a teaspoon of sesame oil and swirl to coat the surface.
Add the ground chicken to the skillet, breaking it apart with your spatula. Cook for about 5-7 minutes, stirring frequently, until the meat is golden and cooked through, smelling savory and slightly caramelized.
Push the chicken to one side of the skillet. Add minced garlic and ginger to the cleared space, cooking for about 30 seconds until fragrant and aromatic.
Mix the garlic and ginger into the chicken, then pour in soy sauce and hoisin sauce. Stir everything together until the chicken is coated and the mixture becomes sticky and glossy, about 2-3 minutes.
Meanwhile, rinse and dry the lettuce leaves, keeping them whole for wrapping. Arrange them on a serving plate.
Spoon a generous amount of the savory chicken mixture into each lettuce leaf, allowing the filling to sit slightly above the leaf edges for easy wrapping.
Garnish each wrap with chopped green onions and a light drizzle of sesame oil for extra flavor and aroma.
Serve immediately while the filling is warm and the lettuce stays crisp, letting everyone pick up their wraps and enjoy the crunchy, sticky bites.