One of the signs at this new Mexican restaurant in Westport claims that it’s "pronto fast." Westport revelers should be thankful that it isn’t true. I dropped by Cancun Fiesta Fresh, located on Pennsylvania Street across the street from The Westport Beach Club, for a Friday night snack. Even though I was the only patron in the modest joint, my small order took five minutes. A fish taco, prepared from scratch, was one of the best I’ve had in KC. The next time I’m in need of quick, inexpensive, late-night fuel in Westport, I’ll know to bypass the street vendors and barroom pizza for Cancun Fiesta.