Start by making your crust
Melt 1 stick of butter
Combine melted butter, sugar and graham cracker crumbs in a large bowl.
Press crumb mixture into the bottom and up the sides of a 13 x 9 pan
In a large bowl, combine 3 cups cold milk and package of vanilla pudding until pudding reaches soft serve consistancy.
Spread an even layer of vanilla pudding over your prepared crust.
Add to the pudding a layer of 2 bananas, sliced.
Add a layer of 1/2 of the whipped topping.
Repeat with another layer of 2 bananas, sliced.
In a large bowl, combine 3 cups cold milk and the package of chocolate pudding
Add layer of chocolate pudding to dessert and top off with remaining whipped topping. Sprinkle top with mini chocolate chips and chopped walnuts.
Cover with plastic wrap and refridgerate for 1 hour