Often filled with fried seafood or roast beef, what traditional New Orleans sandwich is defined by its use of a specific style of crusty French bread?

Po' boy

The name is short for 'poor boy' and is widely traced to a 1929 streetcar strike, when New Orleans restaurateurs Benny and Clovis Martin fed striking workers. Its distinctive French bread has a thin, crisp crust and a light, airy interior.