How to Make It
Preheat the oven to 400°. In a large, deep skillet, heat the oil. Add the garlic and crushed red pepper and cook over moderate heat until fragrant, about 1 minute. Add the onion, season with salt and pepper and cook, stirring occasionally, until softened, about 8 minutes. Add the oregano, cumin and paprika and cook, stirring, until fragrant, about 2 minutes.
Stir in the tomato paste and cook for 1 minute. Stir in the water and simmer for 2 minutes. Add the beans, cover and cook until heated through, about 3 minutes. Using a potato masher, partially mash the beans. Season the beans with salt and pepper.
Set the tortillas on a large piece of foil and heat in the oven for 2 minutes, until just until hot and pliable. Wrap the tortillas in the foil to keep them warm. Serve the tortillas with the beans, cilantro, lettuce, sour cream and lime wedges.