If you visit St. Louis and order a pizza or cheeseburger, there's a good chance that it'll be served with a type of cheese you may not know about: provel. This cheese is more or less unique to the ...

Reportedly invented in the 1940s, the special cheese is a combination of cheddar ... Beyond pies, the chain offers things like mozzarella sticks, Provel bites, chicken wings, garlic bread ...