Since 1983, Herrera's on Illinois Avenue has been pushing out plates of quintessential Tex-Mex. Generations of families have sat at their tables slurping down the complimentary bowl of charros beans and, hopefully, this family tradition keeps going for a long time. Many grew up on the No. 7: two cheese enchiladas and rice and beans. It might even be in some local's DNA. The Hangover with two eggs smothered in pork guiso with a side of refried beans will make Sunday right again.