Sandwich of the Week: The CheesesteakWaitrose Food Illustrated, the British magazine put out by the Waitrose supermarket chain, recently listed its “100 Greatest Moments in Food,” and, initially at least, the Underground Gourmet along with the gluttonous staff at Sandwich of the Week couldn’t have been more pleased had someone sent them a six-foot hoagie. Coming in at No. 2 on the list, you see, right after the harnessing of fire for cooking purposes, was John (4th Earl of Sandwich) Montagu’s invention of the sandwich.