The "Square Beyond Compare." It's not just a tag line, as Imo's Pizza has been the gold standard in St. Louis style pizza since Ed and Margie Imo opened their first pizzeria over 50 years ago. While the pizzas are made circular, the thin crust lends itself perfectly to the square slicing style that has become the trademark (along with Provel cheese) of a classic St. Louis-style slice. Add in some toasted ravioli, the unique Gateway City classic, and Imo's allows you to sample the best of St. Louis without ever leaving home.