Mix together the olives, celery, cilantro, lemon juice, and half of the oil. (Use a blender or food processor if desired and pulse the ingredients until minced). Season with salt and pepper to taste. Adjust any of the ingredients as needed. Set aside.
Season the chicken on both sides with salt and pepper. Lightly bread with breadcrumbs pressing into both sides until coated well.
Heat a nonstick pan on medium heat. Once hot, add the remaining oil. Saute the chicken to deep golden brown on both sides to an internal temperature of 160 degrees using a thermometer.
Top with olive mixture. Garnish with cilantro. Serve with bread.