Heat 1 Tablespoon oil large skillet over medium-high heat.
Add in mushrooms, 1 garlic clove, and sautè until just softened, about 3 minutes. Season with a tiny pinch of sea salt and pepper and set aside on a plate.
In the same skillet add the remaining oil, chicken, garlic, cayenne pepper and ginger and cook until golden brown and cooked through, about 8 minutes.
Return mushrooms to the pan and pour in the coconut aminos and rice vinegar. Stir until combined and just heated through.
Allow to cool a tiny bit then scoop into lettuce leaves.
Garnish with sliced green onions & sesame seeds