In a glass bowl, scoop the filing to form a layer of sauce.
Cover this layer with the lasagne sheets, and top the lasagne sheets with the bechamel sauce.
Top with the tasty cheese.
Repeat with the layer of filing, then the sheets the sauce and then the cheese.
End with the cheese layer, but this time with the mozzarella and the parmesan as well.
Bake at 200°C in an oven on a medium to high rack for 15 to 20 minutes.