The secret to the delicious experience that is an El Metate fish taco lies in the crispy, spiced breadcrumb crust, which provides a great flavor and texture to complement the sweet white fish inside. The pure pleasure of this taco also lies in its simplicity — El Metate has an array of bottled hot sauces you can add, but it's really just the nicely breaded fish on a bed of iceberg lettuce. Yes, iceberg! But the contrast in texture makes it taste fresh, light, and scrumptious. And if you're not running off to your next event in San Francisco, you can enjoy your taco or a full menu of equally tasty taqueria delights in the festive, brightly painted dining room next door, overlooking Bryant. The restaurant likes to call it quits at the early hour of 9 p.m., and at $2.50 a pop, the fish tacos aren't the cheapest Mexican food item to be had in the city, but two of these puppies in the early evening, along with the complimentary chips and salsa, are enough to set up you up right for your night.