Preheat oven to 400°F
Slice sweet potatoes into medium-thick rounds.
In a large bowl, combine rounds with olive oil and preferred spices until fully coated.
Line a baking sheet with parchment and place rounds flat on the sheet.
Coat chicken in olive oil and preferred seasonings. Wrap chicken in parchment and place on separate baking sheet.
Bake sweet potatoes about 20 minutes, checking regularly for any rounds that may overcook. Remove chicken from oven and let cool.
When sweet potatoes are slightly browned, flip rounds over and continue to cook 15-20 minutes, checking regularly for any rounds that may overcook.
Shred cooled chicken and sit aside.
Remove sweet potatoes from oven and allow to cool.
Line bottom of oiled skillet (cast iron, preferred) with cooked sweet potato rounds. Potatoes may be 2-3 layers in skillet.
Top potatoes with shredded chicken, black beans, jalapeño, and cheese. Broil for 5-10 minutes or until cheese is melted.
Garnish with your choice of avocado, sour cream, onions, cilantro, diced tomatoes, black olives.