Pat chicken breasts dry and season both sides with salt and pepper. Heat olive oil in a medium skillet over medium-high heat. Sear chicken on both sides 4-5 minutes until golden and chicken registers 165F. Transfer chicken to a cutting board and let cool 10 minutes then thinly slice into strips. Set aside.
In a large serving bowl, combine lettuce, avocado, tomatoes, chicken strips, mozzarella, and fresh basil. Set aside for a moment.
Make the dressing: In a small bowl, whisk all dressing ingredients until smooth. Season with salt and pepper to taste. When ready to serve, drizzle salad with dressing and enjoy!