In fact, in many parts of the world and even in the US the standard for listing food available for order is just that - a flyer on the counter or even better, some pictures of the various dishes.
(You know the food's going to be good when the picture is faded from 15 years of sunlight.)
> Even a flier by the door would be enough for me!
I wonder how many restaurants there are who can't afford paper flyers. They might even be faster/easier than maintaining an online menu.