The term DELI ROLL is a combination of two words, HERO and BIALY. A HERO sandwich, also known as a sub, hoagie, grinder, or Italian sandwich, is a type of sandwich made with an oblong roll filled with various meats, cheeses, vegetables, and condiments. A bialy is a round, chewy roll with a depression in the center that is usually filled with onions and poppy seeds. The combination of these two items creates a DELI ROLL, which is a sandwich made with a HERO roll and bialy.