Do you think McDonald’s in the United States will take notice of this somewhat surprising trend in Australia’s McDonald’s?:

McDonald’s Australia Ltd chief executive and managing director Guy Russo said the salads, yoghurt and vegetarian burgers introduced alongside the restaurant chain’s Cheeseburgers and Big Macs two months ago had proven to be a hit.

“Customers are buying the products - we have probably in the first four weeks sold what we thought would take three months to sell.”

What more proof could McDonald’s need that a veggie burger should be added to their menu?