– 2 lbs. boneless, skinless chicken breasts – 1 Tbsp. olive oil – 1/2 tsp. salt – 1/2 tsp. pepper – 1 (8 oz.) jar, taco sauce – 1 (10 oz.) can, Rotel tomatoes and chilies – 1 tsp. liquid smoke – Chopped cilantro for garnish, if desired