Preheat the oven to 400°F.
Cut sweet potato into ~1/4 cm slices.
In a large bowl, toss sweet potato in olive oil and salt and pepper.
On a large baking sheet, place sweet potato flat (trying not to overlap any slices). Cook for 15-20 minutes until browned and edges are a bit crispy.
Once cooked, add cheese, black beans, sliced red onion and jalapeno and cook for another 5 minutes.
Remove the tray from the oven and layer on the mango, baby tomatoes, avocado, cilantro and green onion. Serve and enjoy!