Prepare the phyllo tart shell.
Mix the walnuts into the Vanilla Tart Filling before spooning it into the tart shell.
Slice the bananas into a bowl.
Add the lemon juice and, using a fork, toss gently to coat.
Arrange the bananas in a spiral pattern on top of the filling.
When you come around to the starting slice, move in one and repeat.
A few mint leaves strategically placed in the center make a nice touch.
May be refrigerated an hour or two before serving.