Irma Galvan, the venerable Tex-Mex diva of the Warehouse District, has dished up a mean enchilada for years. Now, her son, Louis Galvan, is betting on the ballpark to score points for his own downtown enterprise, Irma's Southwest Grill. Sure, the grill part of the name specializes in such fancy fare as catfish, trout or chicken breast, smothered in chipotle sauce and placed on a bed of poblano-garlic mashed potatoes. But creatures of habit -- and you know who you are -- will be thrilled to hear that Irma's tried-and-true enchiladas are still gladly offered. Don't leave without taking a swing at the scrumptious spinach, mushroom and chicken version. Rich and cheesy and studded with big smoky grilled chicken chunks, this south-of-the-border comfort food is worth leaving home plate for.