Chicken and Mushroom Julienne Pie

Sauté the onion in a mix of butter and vegetable oil until golden, then turn off the heat.

Add the mushrooms, season with salt, cook until all the liquid evaporates, and remove from the pan.

Dice the chicken fillet, season with salt and pepper, sear on all sides, and take off the heat.

Combine the onion, mushrooms, and chicken, stir in the minced garlic, and mix well.

Roll out the pastry and line your baking dish with it.

Spread the filling evenly into the crust, followed by the grated cheese.

Whisk the eggs with the heavy cream, season with salt and herbs, and pour the mixture over the filling.