Need help with MVC Cascading Dropdown Lists

Question

I'm interfacing with and API that returns a complex JSON object that I want to create a dynamic cascading dropdown list from. I've got it pretty well figured out how to do if I was using straight angularJS to do the filtering, However I cannot figure out how to get this to work in the MVC framework using the @html.dropdownlistfor. 

 

Example JS Plunk:

http://plnkr.co/edit/WTkZqCq3Evr4BSidjg54?p=preview

 

Currently hitting the API from the Controller and passing that json in the view data to the view

string vmWareConfigs = JsonHelper.DownloadJson("/VmWare");

ViewData["vmWareConfigs"] = vmWareConfigs;

 

In the view I then want to use AngularJS to walk the json and filter/fill the @html.dropdownlistfor

 

Is this possible?