Argo Tea is awesome. It's like Starbucks, but way better---it offers a few dozen varieties of high-grade loose-leaf teas, all set to go in lovely pots and, best of all, Argo offers vegan baked goods!
Up until recently, the only place I could find labeled vegan foods in an airport was French Meadow in the Lindbergh Terminal of the Minneapolis-St. Paul airport. But Argo offers vegan chocolate chip, as well as lemon poppyseed, muffins. I got a delicious chocolate chip one, which was moist and filling, before my flight to NYC.
The tea they offer is delicious and well-selected. This isn't your average "black, earl grey or green" trifecta; at Argo you can get any number of amazing brews.
I love Argo. If they had hot vegan sandwiches/paninis I'd give them another star.