Instructions:

1. Preheat the Oven: Preheat your oven to 400°F (200°C) and line a baking sheet with parchment paper.
2. Prepare the Spinach Mixture: In a mixing bowl, combine the drained spinach, softened cream cheese, grated Parmesan cheese, minced garlic, salt, black pepper, and red pepper flakes (if using). Mix until well combined and creamy.
3. Cut and Fill the Puff Pastry: On a lightly floured surface, unfold one sheet of puff pastry and cut it into 9 squares. Place a spoonful of the spinach mixture in the center of each square. Repeat with the second sheet of puff pastry.
4. Seal and Brush with Egg Wash: Fold the corners of each puff pastry square towards the center, sealing the edges to create a neat packet. Place the spinach puffs seam-side down on the prepared baking sheet. Brush the tops of the puffs with beaten egg and sprinkle with sesame seeds or poppy seeds for an extra touch of flavor and texture.
5. Bake to Perfection: Place the baking sheet in the preheated oven and bake for 15-20 minutes, or until the spinach puffs are golden brown and puffed up.
6. Serve and Enjoy: Remove the spinach puffs from the oven and let them cool slightly before serving. These savory treats are best enjoyed warm, either on their own or with your favorite dipping sauce.

In Conclusion:

With their creamy filling and golden, flaky exterior, Cream Cheese Spinach Puffs are a must-try recipe for any occasion. Whether you’re hosting a party or simply craving a savory treat, these irresistible bites are sure to satisfy. So grab your ingredients, preheat your oven, and get ready to indulge in the deliciousness of Cream Cheese Spinach Puffs