I go to Krystal today, (bad imitation of White Castle) it is more expensive too. Their sliders have mustard and no ketchup. BK and McD also put mustard on their burgers here in south Florida. In Northeast NJ only checkers puts mustard on their burgers. Even McD breaks their own specs and does not put mustard on their burgers in NJ. Mustard is okay, but sometime s they add too much here. Why would they put mustard and no ketchup on any burger? That Okay for hot dogs.