Cook spinach and drain thoroughly. Squeeze out excess water.
Place stuffing into Ziploc bag. Using a rolling pin, crush to resemble crumbs. Measure out 2 cups of crushed stuffing.
Combine softened butter with the spinach using your hands, or other means, until butter is mixed evenly throughout spinach. (~paddle attachment- stand up mixer)
Mix in 1 cup of crumbs and half cup of Parmesan.
Add in beaten eggs and thoroughly combine.
Add in the remainder of the crumbs and Parmesan and mix until all is distributed evenly.
Using a medium cookie scoop, create mounds. Roll into balls. I made 45 balls from this recipe.
Place spinach balls onto parchment-lined rimmed baking sheet and freeze until firm. Transfer to Ziploc freezer bags until ready to serve.
To cook, place desired amount of frozen spinach balls onto a parchment-lined baking sheet. Bake at 350°F for 13-15 minutes. Best served warm.