Peel a sweet potato and cut into small pieces.Add it to a pan with water, then boil over high heat.Drain the water and remove sweet potato from your pan.
Sauté some onion in oil, then add garlic and bell pepper. Add spices, black beans and corn, then toss to mix well.Stir in the cooked sweet potato, cilantro and lime juice.
Lay out all 6 flour tortillas and divide the prepared filling evenly among them.Roll your tortillas tightly and place into baking dish with the seam side down.