Lemon-Lime Cream Tart

This dessert is a complement to the mocha pudding cake and can be prepared three days in advance. He was a great success at all our meetings.
Preheat the oven to 325 degrees.Place the waffles in a food processor; chop until finely ground. Add sugar, margarine and egg white; beat 2 times or just until smooth.Place the crumble mixture on the bottom and top sides of a round 9-inch pie dish coated with cooking spray. Bake at 325 degrees for 15 minutes or until lightly browned. Cool on a wire rack.Combine the grated lemon zest, juices, eggs, and milk in a bowl, stirring with a whisk, until smooth. Pour the mixture over the prepared cake. Bake at 325 degrees for 30 minutes or until the filling is set. Allow to cool completely. Top with whipped cream. If desired, garnish with strips of lemon zest and mint.