Stir: In a large mixing bowl, combine spinach, mashed potatoes, parmesan, 1 tablespoon of flour, and 2 of the egg yolks (reserve egg whites for next step).
Stir: In a large mixing bowl, combine spinach, mashed potatoes, parmesan, 1 tablespoon of flour, and 2 of the egg yolks (reserve egg whites for next step).