Scrub potatoes; prick several times with fork. Place potatoes on microwavable plate; microwave on High 8 minutes or until tender.
In small microwavable bowl, place barbecue sauce with chicken; cover with microwavable paper towel. Microwave on High 2 minutes, stirring after 1 minute, until thoroughly heated.
Split potatoes in half lengthwise; place on individual plates. Top each with barbecue sauce with chicken, cheese, onion and cilantro.