I sitting at a counter watching the cook make the orders. For each item he would have to look back at the slip of paper with what to make next. This seems like the perfect situation to have google glass. The orders would appear on the google glass in an optimized order and allow the cook to not have to keep glancing at the slips of paper. Another cool thing would be to let the customers get a first person view from the google glass camera showing the cook make their meal. This could be a form of advertising other meals as well.
I wonder if that is how the cooks at Chilis take orders, from slips of paper.