Koulouria (ko-loo-ree) are savory donut-shaped rings of bread made with yeast and covered in sesame seeds.
For most Greeks, this is breakfast with a cup of coffee. No eggs, bacon, sausage, cereal, pancakes, or waffles. Just one or two of these and a cup of coffee. Makes for a nice light start to your day.
If you happen to see someone selling them in the morning, take a chance and try it.