Had the hot dogs at the Coffee Cantina at the Heard Museum. The hot dogs were OK; but the condiments, in particular the mustard, were so old, you really couldn’t squeeze it out of those darn tear apart packages and had the consistency of dried out drywall spackling. IMHO, a hot dog without edible mustard is only a red-colored sausage on an elongated piece of bread. On the plus side, the soda and chips were good and service was very friendly and attentive.