Anthony DeMauro invented the pizza bagel in 1957 at Amster's Bagel Bakery (now closed) in South Euclid, a suburb of Cleveland, Ohio.

[1] On October 1, 1970, Amster Pizza Bagel, Inc. registered for a product that contains 6 frozen pizza bagels in folding cartons with a net weight of 11 ounces (310 g).

[2] In 1974 at a Western Bagel in Woodland Hills, California, 17-year-old store clerk Bruce Treitman began offering a flattened bagel with marinara sauce and mozzarella cheese.

Katz uses bagel dough without the hole, topped with cheese and tomato sauce.

The term "pizza bagel" also means a person of Italian and Jewish descent.