In a large pan add the olive oil and minced garlic and let cook for a few minutes. As soon as the garlic is cooked add the heavy cream, gorgonzola cheese and nutmeg. Stir the sauce constantly. Let it cook for a few minutes so that it thickens.
Boil a large pot of water and season with salt. Add the gnocchi and let them cook according to the timing on the package or until they float to the top.
Transfer the cooked gnocchi to the pan with the sauce and mix everything. Make sure that all the gnocchi are covered in the creamy Gorgonzola sauce.
Plate the gnocchi and on top sprinkle the chopped walnuts and pieces of the crispy prosciutto. Serve immediately.