Pre-heat oven to 400 degrees.
Defrost your puff pastry sheet according to package directions.
On a floured surface, roll out the puff pastry sheet into a large rectangle and cut into 16 square (roughly the same size).
Spread the squares out onto a cookie sheet lined with parchment paper.
Bake the squares at 400 degrees for 15 minutes, until they are golden brown and have puffed up.
While the squares are baking, make the cream. Add the mascarpone and lemon curd to a small bowl.
Mix together until creamy. That's it!
Wash and cut the green tops off the strawberries.
Once the squares have baked, remove them from the oven to cool.
Once cooled, cut all the squares in half. Spread the cream on one piece, then add sliced strawberries. Repeat the process so you have three layers.
Repeat until no squares remain.
Add the napoleons to a serving dish. Top with powdered sugar, lemon zest and mint.
Yum!