There’s apparantly a surge in Japan at the moment in “B級グルメ”; B-Grade Cuisine.
Think of the sort of food you’d throw together yourself, rather than looking in fancy cookbooks. The sort of food you only usually get in home cooking, maybe ‘student cuisine’, the sort of thing that a restaurant wouldn’t dare present.
B-Grade cuisine usually takes on a regional feel. It’s made from what’s available locally and cheaply.
In a completely ironic twist, there are now several restaurants in Tokyo offering various localities’ B-Grade food. Does this make it the new A-Grade? Not yet; the prices are still quite reasonable.
Examples including restaurant addresses at CNN International.