One of the food items that is synonymous with Iowa is the breaded tenderloin sandwich. And each year, the Iowa Pork Producers set out and find the best tenderloin sandwich in Iowa. Choosing the Best Tenderloin in IowaThe Des Moines Register reports that the search begins in the spring, with fans nominating restaurants from all over the state of Iowa. Here are the five finalists for Iowa's top pork tenderloin sandwich in 2025! All the Restaurants That Have Won Iowa's Best Pork Tenderloin Contest The Iowa Pork Producers Association has been hosting their annual Best Breaded Pork Tenderloin Contest since 2003!