John discovers three must-eat restaurants in Rome. Included: Tonda for out-of-this-world pizza; classic Roman stew at Flavio al Velavevodetto; and pasta carbonara from La Gatta Mangiona.

Extreme grilled cheese in Cleveland; and handcrafted burgers in Windsor, Ont. Also: A slice of old-timey coconut cream pie makes for a sweet ending to a diner dinner at Ernie's Coffee Shop in Sault Ste. Marie, Mich.