Grand Central Market in Grand Central Terminal has to be a commuting foodies dream. Artisanal cheeses and breads vie for your business alongside quality meats, seafood, produce and my personal favorite a Penzey's spice stand.
The prices while high compare to gourmet food stores in the rest of Manhattan.
This is a compact market but fits a lot into the space.
So if you are passing through be sure to check it out.
Grand Central Terminal Market Store List