Roadside tacos have become a common Williamsburg fixture, with Endless Summer parked on Bedford, El Diablo behind Union Pool, and the Authentic Mexican taco truck on the southern edge of McCarren Park. Now La Superior gives Mexican road food a stationary kitchen, dishing out teeny tacos high on flavor, homemade salsas, gorditas and flautas—both staples of the street—and much more. Portions are tapas-sized, so order extra, and start with the ezquietes: roasted corn kernels cooked......