It's really hard to argue with tacos. There's never a bad time, season, or occasion for the almighty taco, not even Meatless Monday. Even carnivores have to admit that this black bean and sweet potato situation looks tasty, and it is. Swing by the market after work for a few ingredients (some of which you may already have in the pantry), and get cookin'. Learn how to make a mean vegetarian taco on Greatist!