Grains and stuff
GLLUUTENN. In those days in Europe, most people ate twice a day: Once in mid-day, and again in the evening. Unless you were a working man, breakfast was only eaten by the poor, elderly, or sick. This is because the church and moralists frowned upon breaking their overnight fasts too soon. Men who worked manual labour were given the green light as they needed it in order to perform to their fullest.
The most common foods that were eaten among all classes were bread, porridge, gruel, and pasta.