East of downtown El Paso and just a couple of blocks from the tangle of highways that funnel into the Bridge of the Americas sits a small, easy-to-miss Mexican diner. Nothing in its English, aggressively anodyne name or its industrial park facade would suggest that Good Luck Cafe has been a mainstay here for more than half a century.Considered by locals to serve the best menudo in the city, Good Luck is as humble as that traditional tripe-and-hominy soup (and purported hangover antidote). Inside, the booths and tables, like the bowls and plates, are plastic; the fluorescent lights and beige tile floor don’t exactly scream ambience. And yet a line forms out the door every day. There is an undeniable feeling of comfort at Good Luck,…