Riverside Market is one of the limited alternatives you will find to a grocery store in the Wall Street area, and it's not a bad one. They cater to the lunchtime crowd by day with a full hot and cold buffet, and a sandwich and salad bar to boot. In addition, there's comfortable seating here, making it a step up from your average deli.
Since I had to look with an eye of someone who is moving to the area, we were happy with what we saw. While it's not a full-on supermarket, it has all the essentials you need in a pinch, from fresh fruits and vegetables to dairy to meats. The grocery section is well-stocked and offers a good variety, and the overall presentation is very clean. I know where I'll be heading for pinch-hit groceries in the future.