Preheat oven to 350. For crust- mix crushed graham crackers and 1 stick of butter. Line bottom and sides of 13X9 pan with mixture. Bake crust for 5-8 minutes.
Beat until fluffy the eggs, 2 sticks of butter and powdered sugar. Spread mixture on cooled crust. Add layer of crushed pineapple and then sliced bananas. Cover with whipped topping and sprinkle with crushed graham crackers. Refrigerate 1 hour, then serve.