Guy Fieri revisits an old favorite he's been going to for years in San Francisco, but nowadays it's his buddy who's on the line serving up cod rillettes and chowder with a surprise ingredient. In St. Paul, the Godfather of pasta is still servin' scratchmade everything, including a twist on mac and cheese, and in Superior, Wis., a neighborhood hot spot has added some new appetizers with influence from up north.