I wanted to take things even closer to the controller. The getJSON 'content' is actually the model for my page. I have found using BindTo(Model) works for me. I think similar code would be a useful demonstration in the MVC examples.
var book =
var sheet = book.Worksheets.Add();
sheet.Name = model.ReportData.Lot;
"Report for "
BindTo might be an obvious answer to a seasoned MVC developer, however I am a seasoned developer relatively new to MS ASP NET MVC.