Gone are the days of every plate being garnished with parsely or orange slices but it doesn't mean that diners don't expect the meal to have a certain color appeal. Now even the lowly onion has to show color if it expects to make the grade.
For years most quick service retailers (QSR also known as fast food restaurants) used white or yellow onions almost exclusively in food preparation and occassionally used red onions for salads. This first came to my attention in a Forbes magazine article commenting on the increasing use of red over white onions by major QSR chains.
They pointed out that Pizza Hut made the switch to red onions back in 1997, with Subway following suit two years later. Now almost a decade later most chains have made the switch because consumers prefer red onions based on their visual appeal.