Thanks Dave. Now that the dust has settled on the My Business launch, I was just looking into this more.
It does appear name + menu needs to be in the query to trigger this type of result which make it a little limited.
But also if you were just searching directly for "DMK Burger Bar Chicago, IL" you get the standard display but in the knowledge panel you get Menu: viewmenu.com and viewmenu is SinglePlatform's property too.
Here's an article about it over at SinglePlatform.
<a href="http://www.singleplatform.com/2014/03/07/google-adds-menus-search-results/">Google Adds Menus to Search Results</a>
Here's the example in their post.
<a href="https://www.google.com/search?q=Island+prime+menu&oq=Island+prime+menu">Island prime menu - Google Search</a>
But if you search for that restaurant directly the knowledge panel does not show Viewmenu, it shows Urban Spoon's.
On the SinglePlatform site it says they have services for Drs and Repair businesses and creative.
So then I did some digging on Viewmenu to find other businesses besides restaurants.
Google "
Endless Images Photography" which brings up the KP. The KP also shows Menu: viewmenu.com which is not very applicable for a photog. Seems like for other types of businesses it should be viewservices or something.
Here is Endless Images Photography's Viewmenu page:
Menus for Endless Images Photography
Anyway, it's kind of cool what they are doing but it does not seem this option is very discoverable in search unless you are doing a search for name + menu and the restaurant happens to use this service.
BIG QUESTION... with all these new Google widgets and with Google showing so much in search these days....
As a restaurant owner for example... if someone is searching for your menu, wouldn't you rather get them to YOUR site where they could see your food images and pictures of your ambiance, instead of seeing a stripped down menu on Google?