Where is barley a staple food?

Barley is a staple food in several regions, particularly in parts of the Middle East, North Africa, and Central Asia. It is commonly used in traditional dishes in countries like Ethiopia, where it is often ground into flour for porridge or bread. Additionally, barley plays a significant role in the diets of some communities in Mongolia and Tibet, where it is used in various forms, such as tsampa, a roasted flour.