Clean the spinach and rinse it under running water to remove any dirt. Boil the spinach, then drain well. Place the spinach in a food processor and chop finely.

In a bowl, add the ricotta, black pepper, salt, chopped spinach, and Parmesan cheese. Mix with a spoon until well combined.

Let the dough rest for 15 minutes.

Lightly flour the work surface and place the dough on it. Cut off a piece at a time, roll into ropes, and cut into gnocchi pieces.

Boil the gnocchi in plenty of water.

In a skillet, melt the butter with the sage over medium heat.

Drain the gnocchi and add them directly to the skillet. Sauté for a few minutes, then add a spoonful of Parmesan cheese.