Carl's Jr. has a plan: automated machines to take your order, and a ten percent discount for using them.
Taco Bell had automated ordering kiosks at the 1996 Olympics. They were awesome, actually, because your order was never wrong. They were simple to operate touch-screens, and you could customize your orders to do all sorts of things without worrying about trying to explain what you wanted to a deaf 16-year-old. Since much of Taco Bell's menu is just different ways of putting together the same basic ingredients, the customization aspect worked very well.
I remember that I was very sad when they removed the kiosks after the Games were over. They represented a real improvement on the Taco Bell experience.
Automation is going to make most human labor obsolete.