Preheat Oven to 400F and prepare a parchment lined baking sheet.
In a medium sized bowl, combine the chopped spinach, cream cheese cheese, feta cheese, minced garlic cloves, all the seasonings and set aside.
On a clean surface, lay your puff pastry and cut it into squares. The squares should be big enough for you to fold over into a triangle.
Add in your creamy spinach mixture to one side of the triangle and fold over. Repeat for the rest of the puff pastry.
Lay all the spinach puffs spaced about 1 inch part and brush each of the tops with butter.
Bake in the oven for 20-25 minutes or until golden brown.
Serve and enjoy!