Venture Capitalist and blogger Fred Wilson recommends business lunch at the Shake Shack:
The line can be used to your advantage. I generally suggest people meet me there at noon, we get in line and start our conversation, just like we'd be doing at a restaurant while we order and wait for the food. Generally at that time of day, its about 20 minutes wait, unless its raining in which case, you need to find another place for your lunch.· How To Do A Business Lunch At The Shake Shack [A VC]
After we order, we get a table, and there are almost always tables to be had, and continue our discussion. Then the food comes, we eat, finish our conversation, and leave. All in all, it's about an hour, the same as any other business lunch. The difference is you get to spend that hour in the park and the burgers, hot dogs, fries, and shakes are great.