Season chopped sweet potatoes with salt, pepper, cumin and smoked paprika. Heat a large skillet oven medium heat and add olive oil. Add onions and garlic, tossing to coat, then add sweet potatoes and stir. Cover and cook for 15-20 minutes, until sweet potatoes are just softened and cooked through.
While potatoes are cooking, combine yogurt, half and half, adobo, lime juice and zest and salt, whisking well to combine. Set aside.
Once sweet potatoes are cooked, add in black beans and toss well. Cover and cook again for 5-6 minutes until everything is warmed through. Heat tortillas and serve sweet potato mixture topped with cheese, crema and lots of cilantro!