Boil a large pot of salted water.
In a mixing bowl, combine ricotta cheese, egg, and salt.
Gradually add flour, stirring until a dough forms.
Incorporate nutmeg and Parmesan cheese into the dough.
Lightly flour a surface and turn out the dough.
Knead the dough gently until smooth.
Divide the dough into smaller portions.
Roll each portion into a rope, about 1/2 inch thick.
Cut the ropes into 1-inch pieces and create ridges with a fork.
Drop the gnocchi into boiling water and cook until they float.