1. Bring the milk, butter, and salt to a boil.
2. Once the mixture is boiling, add the flour gradually.
3. Cook while stirring until the mixture comes away from the pan.
4. Let the mixture cool slightly, then incorporate the eggs one by one.
5. Stir well.
6. Add grated nutmeg.
7. Let the mixture cool and shape small dumplings on a floured work surface.
8. Drop them into boiling water; they are cooked when they float to the surface.
9. Transfer them to cold water and drain.
10. Make a sauce with tomato paste, green olives, and mushrooms, preferably rehydrated dried porcini mushrooms.
11. Add the dumplings.
12. Serve with rice.