Is this a new thing everywhere or just in the tragically hip East Village: restaurants with ONE DISH. Or a shtick along the same line.
There's an ice cream place where you order blind & get what they give you. I'm betting it's always vanilla, with or without sprinkles.
There's a pasta place where your only choice is alfredo fettuccine (althought there's a long list of add-ons).
I don't know of others but it feels like organization... a movement! as Arlo Guthrie says in "Alice's Restaurant."