Boil the pasta in plenty of salted water. As soon as it is al dente, drain it and put it in a bowl; season with the sautéed mushrooms, mix well and allow it to cool to room temperature, stirring occasionally.
Just add the brie (or in the vegan version the tofu) cut into cubes, the chopped walnuts, a little 'valerian ragged with your hands and a few leaves of red radicchio cut into strips. Season with salt and pepper and keep in a cool place until consumption.
Source: https://www.degustabox.com/it/blog/pasta-fredda-del-bosco.html