Put all the ingredients of the crust dough in a cutter and mix briefly until it is connected. Make a round flat ball between two baking papers and let it set for 1 hour. Remove from the fridge. Let it rise for 10 minutes and roll out to a thickness of 2 to 3 centimeters. Preheat the oven to 190 ° C.
Push the dough into a cake pan. Cover with baking paper and pour baking pearls or beans on top. Even if you use ready-made puff pastry or crust dough, which is also very okay, you have to take this step. First "blind baking", that's the name of. Bake for 25 minutes at 190 ° C and let cool.
With white asparagus you peel them and cut 1 centimeter from the bottom. With green asparagus you only cut the bottom, you don't have to peel it. Wild asparagus you can simply rinse and dry.
Place the asparagus on an oven plate and sprinkle with olive oil, season with salt and pepper.
Roast for 20 minutes at 190 ° C (the taste then becomes more intense and the moisture reduces).
Beat the ricotta with the eggs, the Zeste of Citroen and half of the Parmesan cheese. Season with salt and pepper and nutmeg. Pour out on the fried crust dough.
Place the asparagus on it, sprinkle the Parmesan cheese over it.
Bake for 30 to 35 minutes at 180 ° C, depending on the depth of your shape.
Let it cool down before eating the quiche.