Preheat oven to 350 degrees F (175 degrees C). In a large skillet, heat oil over medium-high heat. Add chicken breasts, and saute 4 to 5 minutes each side, until lightly browned. Place browned chicken breasts in a 9x13 inch baking dish. Mix teriyaki sauce and ranch and spoon over chicken. Sprinkle with cheese, green onions and bacon bits. Bake for 25 to 35 minutes, or until chicken is no longer pink and juices run clear. Garnish with parsley and serve.