Preheat oven to 400 degrees.
Rinse chicken. Salt & pepper both sides. Place in baking dish. Drizzle butter over chicken. Bake about 30 minutes until chicken is tender. Remove from oven. Drain juice.
Crumble chips; pour over chicken, evenly distributed. Add cheese then tomatoes, evenly distributed. Spread olives. Return to oven for 10-15 minutes until cheese melts.
Top each serving with 2-3 tbls sour cream and sprigs of cilantro.