Drain Ricotta: Place ricotta in a colander to remove excess liquid.
1 ½ cups sheep's milk ricotta
Cook Spinach: Wash spinach, then wilt in a covered pot for 7-8 minutes on low heat. Drain and cool.
1 ½ lbs fresh spinach
Prepare Filling: Chop spinach finely. In a bowl, mix spinach, well-drained ricotta, salt, pepper, nutmeg, egg, and Parmigiano.
1 large egg, Salt to taste, 1 pinch black pepper, Nutmeg to taste, ½ cup grated Parmigiano Reggiano
Add Flour: Mix in flour for a consistent dough. Form small, slightly flattened balls (about 18-20 g each), and place on a tray. Dust lightly with flour.
⅓ cup all-purpose flour
Boil Gnudi: Boil water in a large pot. Melt butter with sage in a wide skillet. Cook gnudi in boiling water until they float. Transfer them to the skillet.
7 tablespoons butter, Fresh sage leaves
Finish Cooking: Gently rotate the skillet to coat gnudi in butter and sage. Serve hot with extra Parmigiano.
Extra Parmigiano Reggiano for serving