Whisk together all dressing ingredients until smooth.
Season chicken with garlic powder, salt, and pepper.
Preheat a large skillet over med-hi heat. Once hot, add 1 Tbsp of oil and chicken.
Cook for 5-6 minutes on each side until cooked throughout and lightly browned on the outside.
In a large bowl, add the chopped lettuce, then top with chicken, pears, onions, bell pepper, celery, bacon, and cheese.
Pour dressing over before serving and gently toss to combine.