In a bowl combine both boxes of pudding mix and prepare according to the package directions omitting 1 cup of milk.
Fold half of the whipped cream into the pudding mixture. Now make a layer of vanilla wafers on the bottom of your casserole dish (none of the wafers should be on top of one another), then slice bananas over the wafers until you get an even cover but you should still be able to see the first layer.
Now slice strawberries over the bananas. The next layer will be the pudding. Start over with the vanilla wafers, continue layer up to the pudding.
After you've applied a layer of pudding, line the sides of the pan with wafers. Take the rest of the whipped cream and spread it on top.
Crush the remaining wafers and crumbs, and then sprinkle them on top of whipped cream.
Optional: Garnish top with strawberries.