"Food remains and seeds indicate that the preferred snacks were oysters, crabs, mussels, periwinkles and cockles. Walnuts, hazelnuts, plums, cherries, peaches, dried raisins and figs were also popular..."
The distribution of food remains over the site suggested that there was a class divide in the consumption of snacks. [Museum of London archaeologist Julian] Bowsher explained that remains found underneath the gallery seating suggested that the wealthier classes munched on crabs and sturgeon, as well as imported treats like peaches and dried figs. Meanwhile, oyster shells were found scattered all over the yard area, where commoners stood.
"At that time, oysters were indeed the staple diet of the poor," Bowsher said.
Link. Image credit: Museum of London Archaeology