This trip, Guy Fieri's grabbing all kinds of cosmopolitan comfort food. In Portsmouth, N.H., a righteous joint puttin' a New England spin on corned beef and cabbage, plus a fresh take on stroganoff. In Los Angeles, a mother-daughter team dishing out authentic Ethiopian specialties. And in Minneapolis, an over-the-top hot dog spot loadin' up with beef, sausage, and even lamb poutine.