These sweet potato and black bean tacos are a flavorful and satisfying vegetarian option. Start by roasting diced sweet potatoes in the oven until tender. In a separate pan, sauté black beans with onions, garlic, and spices until heated through. Warm corn tortillas in a dry skillet or microwave. Fill the tortillas with the roasted sweet potatoes and black bean mixture. Top with your favorite taco toppings, such as avocado, salsa, and cilantro. These tacos are not only delicious but also packed with fiber, vitamins, and minerals.