Drizzle olive oil into a 12-inch skillet over medium-low heat. Add chicken and cook, stirring occasionally, until cooked through, about 7-10 minutes.
Add onion, garlic, mushrooms and buffalo sauce. Stir to combine and allow to simmer for about 3 minutes.
While buffalo chicken mixture is simmering, assemble platter for making lettuce wraps of lettuce leaves, celery, carrots, blue cheese crumbles, and blue cheese dipping sauce.
Serve warm.
Notes
Nutrition information does not include optional ingredients in the calculation.