"Do not suggest side salad as an option, customer should request it when they order," read an internal memo to workers at one East Hanover, New Jersey location that CNBC visited on Thursday.
In an email, McDonald's spokeswoman Lisa McComb told CNBC that while no particular side is specifically suggested, customers are made aware of both choices based on the menu board and through their own questions and make choices based on that.
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"The chart is simply a quick reference guide that is part of a broader restaurant training tool to assist crew in efficiently taking customers' orders. Customers are made aware of the choice of side via the menu boards so the intent of the signage is to remind crew it's not necessary to recite it as an option so they can focus on accurately and efficiently ringing up the order," she wrote.