Cut the onion into thin slices and fry it in a pan with a tablespoon of oil.

Cut the zucchini into slices, put them in the pan with the onions and cook for 5 minutes, stirring frequently until they begin to soften. Add salt and pepper, turn off the heat and let it cool.

Meanwhile prepare the filling: put the eggs in a bowl, add two pinches of salt, one of pepper and nutmeg. Beat with a hand mixer to mix the ingredients well.

Add the milk, two tablespoons of Parmesan cheese and beat well. Finish the preparation by adding the curry.

Roll out the puff pastry in a 30 cm mold.

Fill the dough with zucchini.

Pour the mixture of eggs and milk covering the zucchini.

Bake at 180 ° C for 35 minutes.

Serve hot or at room temperature!