Here are two recipes I picked up in the Health Zone at Aol. The chocolate shakes are great, but I haven't tried the nacho/vachos yet.
Boil potato slices for 3-5 minutes or until slightly tender. Drain and arrange on an oven-safe serving platter, overlapping slices. Combine chicken, picante sauce and onions in a small bowl; spoon this mixture over potatoes. Sprinkle with cheese, olives and jalapenos. Broil 4-6" from heat until cheese is melted.