[1] The pizza has a thin cracker-like crust made without yeast, topped with sweet tomato sauce and Provel cheese, and is cut into squares or rectangles rather than wedges.

Frozen St. Louis–style pizzas are sold at local supermarkets such as Schnucks and Dierbergs Markets.

[1] Provel is a white processed cheese made from cheddar, Swiss, and provolone,[4][8] developed by Costa Grocery in St. Louis during the 1950s.

It’s made in Wisconsin by a Kraft Heinz subsidiary, primarily for the St. Louis market.

The tomato sauce is seasoned with more oregano than other styles of pizza,[1][2] and is sweeter, likely due to the influence of Sicilian immigrants upon Italian foods in St.