
Whisk marinade ingredients together to combine. Place chicken into a shallow dish; pour 4 tablespoons of the dressing / marinade onto the chicken and stir around to coat.
Heat about one teaspoon of oil in a large grill pan or skillet over medium-high heat and grill or sear chicken fillets on each side until golden and cooked through. Allow to rest.
Slice chicken into strips and combine with lettuce, avocado, tomatoes, mozzarella, and basil. Drizzle with remaining dressing.
Season with salt and pepper, then serve.