Making Spinach and Cheese Puff Pastry Squares is a straightforward process. Follow these steps for perfect results:

1. Preheat Oven: Preheat your oven to 400°F (200°C). Line a baking sheet with parchment paper.
2. Prepare Puff Pastry: Roll out the thawed puff pastry on a lightly floured surface. Cut into squares (approximately 4×4 inches).
3. Mix Filling: In a large bowl, combine the chopped spinach, ricotta cheese, mozzarella cheese, Parmesan cheese, garlic powder, salt, and pepper. Mix until well combined.
4. Fill Pastry: Place a tablespoon of the filling in the center of each pastry square.
5. Fold Pastry: Fold the edges of the pastry over the filling to create a triangle or rectangle shape. Press the edges to seal.
6. Egg Wash: Brush the tops of the squares with beaten egg for a golden finish.
7. Bake: Place the filled pastry squares on the prepared baking sheet and bake for 25-30 minutes, or until golden brown.
8. Cool: Remove from the oven and let cool for a few minutes before serving.

By following these steps, you’ll create Spinach and Cheese Puff Pastry Squares that are not only delicious but also visually appealing.