A tour of breakfast spots stops at Big Ed's City Market in Raleigh, N.C.; Post Road Diner in Norwalk, Conn.; Square Caf? in Pittsburgh; Hot Metal Diner in the Pittsburgh suburb of West Mifflin; Carman's Country Kitchen in Philadelphi; and Wentworth by the Sea in New Hampshire, where lobster hash is sampled. Also: Loco moco is explained during a visit to Hawaii.
