You can't drive through Elgin without order sausage. I'm pretty sure that's against the law. Southside Market is the place to do it, and they serve two varieties here: Original, and Jalapeno Cheddar. The first is spicy and fabulously salty; the second heart attack-inducing, but so good I threw coronary caution to the wind and kept eating.
Texas may be brisket country, but in Elgin the star of the show are the fabulous smoked sausage links produced by Southside Market. These are so good that they're shipped to lesser barbecues around the country, but they're never the same as in their home pit.