01 - Set oven temperature to 400°F (200°C) and line a baking sheet with parchment paper.
02 - Wash sweet potatoes, prick them several times with a fork, and bake directly on the oven rack or prepared baking sheet for 40 to 50 minutes until tender. Allow to cool slightly.
03 - Slice each sweet potato lengthwise and carefully scoop out most of the flesh, leaving approximately 1/4 inch of border to maintain structural integrity. Set the flesh aside for another use.
04 - Brush the insides of the sweet potato skins with olive oil, place skin-side down on the baking sheet, and bake for 10 minutes to crisp.
05 - In a bowl, combine black beans, red onion, red bell pepper, jalapeño, fresh cilantro, ground cumin, smoked paprika, chili powder, salt, and black pepper. Mix thoroughly.
06 - Stuff each potato skin with the black bean mixture and top evenly with shredded cheddar and Monterey Jack cheeses.
07 - Return potato skins to the oven and bake for 8 to 10 minutes until cheese is melted and bubbly.
08 - Remove from oven and garnish with sour cream or Greek yogurt, diced avocado, sliced green onions, fresh cilantro leaves, and lime wedges before serving.