Sorry to resurrect this thread, but I'm sitting in the RCC at NRT and pretty amazed at the lack of snacks.
For one thing, all that is currently available is packaged rice crackers/snack mix, a few bananas, some cream cheese and saltines, and once every 20 minutes or so an attendant will bring out a small tray of finger sandwiches (maybe a dozen) and a small tray of some sort of rice roll things (maybe 20 on the tray). As its insanely busy in here right now the food disappears rapidly and they don't seem to be in a hurry to replenish it.
This has always been one of my favorite RCC's and in the past I don't recall the pickings being so slim. Granted its been over a year since my last visit.