ANKENY, Iowa--(BUSINESS WIRE)--Casey's (Nasdaq: CASY), the nation's third largest convenience retailer and fifth-largest pizza chain, today announces that its first-ever pan pizza, featuring a fluffy, golden-brown square crust and edge-to-edge toppings, will arrive on its menu beginning Wednesday, Oct. 28. Casey's adds pan pizza to its permanent menu as the crust type remains hard to find close to home for many Americans. One in four in the U.S. surveyed by Casey's said that getting pan pizza r.