This is my go-to place when I'm cold and hungry with only a fiver and two loonies in my pocket.
Although it's in a depressingly lit and cramped food court, they managed to carve out a space that feels warm and cheery. Service is brisk and no-frills, but friendly.
I usually choose from any of the udon selection because of their satisfying prices and tastiness (I'm especially partial to the kitsune), but if I'm feeling like I need something more hearty, I go for the salami rice curry. I always top if off with pudding for dessert if it's available. Simple but supremely comforting.
I also recommend the jumbo inari, onigiri, imo-mochi, and ochazuke.