使用强类型视图的上下文敏感的ASP.NET MVC导航菜单？

I am trying to figure out the best way to create a navigation menu in ASP.NET MVC that can change based on the controller action from which it was built (it would also be different based on user permissions and such). The navigation menu is displayed in the Master Page, and all of our views are strongly typed. I am trying to figure out the best way to creat