Cake Dessert Server

How could I make Olive Garden’s “Black Tie Mousse Cake”?
http://www.olivegarden.com/menus/menu/Default.asp?server_path=/menus/dessert/
It says it has “Rich layers of chocolate cake, dark chocolate cheesecake and creamy custard mousse.”
it’s soooo good…
Try http://copycat-recipes.8m.com. I know I saw some Olive Garden recipes on this site.