Mikaku

If it's absolutely necessary to have a quick tidy lunch then Japanese box lunches are the way to go. Especially when they come all cutely packaged and cheaply available ($6.20!) from Mikaku around the corner. Nothing special but perfectly satisfying kind of meal, the tonkatsu (breaded pork) and the chicken katsu (breaded chicken) lunch box comes nicely balanced with 2 pieces of gyoza and a little salad.
Mikaku, 85 Kenmare Street near Cleveland Place