How to create a list of list of different classes?

Question

Hello friends!

I'm newbie in c# and I have in my project two classes: User and Entity. I want to create a List of List of these classes. Bellow what i tried.

List<User> lu =newList<User>();List<Entity> le =newList<Entity>();

User a =newUser();
User b =newUser();
User c =newUser();
User d =newUser();

Entity w =newEntity();
Entity x =newEntity();
Entity y =newEntity();
Entity z =newEntity();

lu.Add(a);
lu.Add(b);
lu.Add(c);
lu.Add(d);

le.Add(w);
le.Add(x);
le.Add(y);
le.Add(z);

//This part dont work!
List<List<dynamic>> l =newList<List<dynamic>>();
l.Add(lu);l.Add(le);

To show this list:

foreach(var p inViewBag.usrs)
{
    <tr>
        <td>@p.Name</td>
        <td>@p.LasName</td>
    </tr>
}

 How can i do that? Create and show a List of List of different objects?