This trip, Guy Fieri's checking in with some Flavortown faves crankin' out new knockouts! A Triple-D OG Chicago institution is celebrating over 100 years, still slingin' their signature thin crust pies and firing up fried chicken and a mighty mostaccioli. In Richfield, Minn., a real-deal Mexican joint is busier than ever, servin' a righteous relleno and prime-time pork taco. And a vegetarian diner in Cambridge, Mass., has really taken off, dishing out a meat-free spin on smash burgers, plus lip-smackin' jackfruit Cubanos.