Puff pastry chocolate tart?
First of all, you can make the chocolate pudding in a saucepan (using a chocolate pudding mix), bake the puff pastry by itself in the oven for a few minutes and then spoon the pudding in to the puff pastry to make a delicious chocolate tart.

By the way, you can also do the same with fruit, such as apples, cherries, blueberries. You can either make a homemade fruit filling or buy canned fruit filling.
Good luck!