Taco House is a Colorado institution that has specialized in old-school Tex-Mex since 1958. Its three remaining locations, in Denver, Littleton and Lakewood, haven't changed their recipes for six decades, so the appeal is partly nostalgia-based. But Taco House is also a straight-up good deal, where a good meal can still be had for just a few bucks. Our favorite: two cheese enchiladas, which ring up at $4.80. At that price, you can afford to splurge, so add a lettuce-and-cheese topping for $1.50 or a blanket of red or green chile for just $1.25.