Preheat oven to 425° F
Peel the sweet potatoes, slice them into fries (slice them to the thickness you prefer), and place them in a large mixing bowl.
Coat the fries with oil and then season with salt, pepper, and chili powder, tossing in between seasonings.
Place in the oven at 425° F and bake for about 30-45 minutes, tossing halfway through (baking time will vary depending on the thickness of the fries). Once golden brown and crispy, sprinkle cheese on top and cook for an additional one minute or until cheese is melty. Remove from oven and set aside.
In the meantime, heat the black beans on the stove in a pot or in the microwave in a microwave-safe bowl.
In a small mixing bowl, combine yogurt, garlic, lime, and salt, stir until combined and set aside.
Place the fries on a plate and top with beans, yogurt sauce, and any additional toppings desired. Enjoy!