> Iconic food: Tater tots
Created as a way to utilize the waste scraps of potatoes at the Ore-Ida potato factory in the 1930s, Tater tots are now a ubiquitous snack for children and hipsters alike.
> Iconic food: Stromboli
Created by Italian immigrant Nazzareno Romano in Philadelphia and named after a 1950 Ingrid Bergman film, stromboli is a baked roll of dough layered with lunch meats, cheese, and peppers.
> Iconic food: Cheesesteak
Pat Olivieri, a hotdog vendor in 1930s Philadelphia, is credited with inventing the cheesesteak. Though many variations are available, the common Philly cheesesteak is thinly sliced beef covered in Cheez Whiz.
> Iconic food: Clams casino
An appetizer of clams topped with butter, bacon, peppers, and bread crumbs and broiled until browned, clams casino were likely invented in Rhode Island and are now a New England classic.
> Iconic food: Shrimp and grits
What started as a breakfast staple for South Carolina sailors and fishermen in the early 20th century is now a hot menu item in Southern-style restaurants from Seattle to New York City.