Crust:
1 1/3 cups graham crumbs
1/3 cup melted butter
Mix and press into a pie plate. No baking required.
Filling:
4 egg yolks
1/2 cup sugar
1/2 cup flour
3 cups milk
Mix together well and microwave on high for 3 minutes at a time, stirring in between, until filling is thickened (about 9 minutes total). Then add:
2 T. butter
1 tsp vanilla
Refrigerate filling until cool. When ready to assemble, spoon half of filling into pie crust, then slice a few bananas on top, then cover with the rest of the filling. Make sure all the bananas are completely covered so they don't turn brown. Top with whipped cream.