Fresh baby spinach from a salad bag will do wonders. If not available, it may be possible to do from frozen. Or from the spinach in the can - just like in the cartoon.
1 bag (6 cups) fresh baby spinach
1 tablespoon water
Kosher Salt to taste
1/2 cup cream cheese or Mascarpone cheese
1 cup fresh cream
Freshly ground black pepper
1/2 cup Parmesan cheese
Simmer spinach with water in a sauce pan. When cooked and tender, stir in cream cheese, black pepper, Parmesan and black pepper. Turn heat off, add cream and process everything in the pan with a hand blender. Serve it with pasta or gnocchi.