Best Really Cheap Taco

The term "cheap" is so insufficient to the task of pricing El Metate's delicious tacos, we're forced to elaborate. They're really cheap. For a mere buck and a quarter you get two corn tortillas piled high with radishes, onions, lime, cilantro, and one of a dozen substantial fillings, including crisp, spicy pork carnitas; grilled vegetables in season; chile colorado with steak and potatoes; and moist shards of chicken with chile rojo. A variety of salsas -- verde, negra, habanera, et al. -- are available to gild the lily, and if you're feeling flush, guacamole, cheese, and sour cream can be added for another dollar. This tiny, cheerful Outer Mission taqueria also cooks up big platters of flautas, enchiladas, tamales, and chiles relleno as well as frothy aguas frescas in mango, tamarind, and pineapple -- the perfect complement to your bargain of a taco.