With the help of a food processor, you can quickly and easily shred the sweet potatoes for this hearty and nutritious casserole. Combine the shredded sweet potatoes with black beans, spices, and cheese, and bake it in the oven until the top is crispy and the flavors are well blended. This vegetarian casserole is packed with protein, fiber, and vitamins, making it a satisfying and healthy meal option.