Melt a butter flake in the pan, distributing it over the bottom. Remember to repeat for each crespella.
Pour ½ ladleful of batter into the hot pan, distributing the mixture. This is enough for 6 crespelle. Cook on a small stove on medium-low flame for about 3-4 minutes. Shake the pan; when the crespella pulls itself off the bottom, it is almost ready. When the side resting on the pan gets color, with the help of a spatula, arrange the crepe on a clean plate (I only cook them on one side). Note: Always stir the batter since the flour tends to settle to the bottom of the bowl.
Arrange the crespelle on a plate and let cool.
Preheat oven to 190C degrees (374F).
Put two tablespoons of filling in the center of each crespella and spread it on the surface. Add a few asparagus heads to each one, leaving a few aside to decorate at the end.
Fold the crespelle back on itself and then fold it in half again. Arrange stuffed crespelle in an oven dish previously greased with olive oil or butter. If the crespelle overlaps a little, nothing happens.
Add a few flakes of butter on each crespelle, distribute the leftover asparagus heads, and sprinkle with grated Parmigiano.
Heat in the preheated oven for a few minutes.