Spinach Pasta Roulade with Mushroom Stuffing
For the pasta dough: Trim the spinach, rinse then blanch in boiling salted water until wilted. Let cool slightly, squeeze out the excess water and purée.
Mix into the flour along with 3 eggs, 2 tablespoons oil and a pinch of salt. Knead until smooth and elastic, cover and let rest for 30 minutes.
For the filling: Wipe the mushrooms with a damp cloth and finely chop. Peel the shallots and dice finely. Trim the leek, rinse and thinly slice. Heat 2 tablespoons oil in a large saucepan and sweat the mushrooms, shallots and leek until softened. Peel and mince the garlic. Add to the pan, season with salt and pepper and then cover and let cool.
Rinse the parsley, shake dry and finely chop. Mix into the mushroom mixture along with the ricotta, Parmesan and remaining egg. Season with salt and pepper and set aside.
Roll out the pasta thinly on a floured work surface. Arrange on a clean linen cloth, spread the filling over the dough and roll up into a roulade in the cloth. Tie the ends with butcher's twine to seal.
Bring a large pot of salted water to a boil. Add the roulade, reduce the heat and simmer over medium heat for 30 minutes. Remove the roulade from the pan, carefully remove the cloth and cut into slices to serve.