There was a time when our favorite Korean restaurant was in a huge, ex-McDonald's space. There's a Chinese restaurant we really like that grew in a space vacated by a Taco Bell. And our favorite outpost for Colorado-style Mexican grub is a joint that opened forty years ago in a former Safeway: La Fiesta. Here, the fine and traditional cuisine of Mexico gets a norteamericano makeover that puts Colorado's Mexican food in a class by itself. The burritos come smothered under a green chile that's a medium-thick, medium-hot mess of roasted chiles, pork and thickening agents that sticks like napalm to anything it touches. The rellenos are done egg-roll style — wrapped in wonton skins and stuffed with bright-yellow cheese product. But hands down, the best thing on the menu is the Thursday special (La Fiesta is only open for weekday lunches) of chile caribe — a stone-simple conglomeration of pork, potatoes, red chile and nothing else.