Make the Spinach Filling: In a big pan, warm up olive oil on medium heat. Put the diced onion in the pan and cook until it becomes soft, which should take around 3-4 minutes.
Put the chopped garlic in the pan and cook for one more minute until it smells good.
Put the cut spinach leaves into the pan little by little, stirring until they shrink. Cook the spinach until it shrinks and there is no more water in the pan, which should take around 5-7 minutes.
Add salt, black pepper, and red pepper flakes (if desired) to the spinach, mix well.
Take the pan off the stove and move the cooked spinach mix to a big bowl.
Let the spinach mix cool a bit, then add Parmesan cheese, feta cheese, mozzarella cheese, and fresh parsley or basil. Mix until everything is well mixed together. Put aside.
Get the puff pastry ready.
Heat your oven to 400°F (200°C) before using it. Cover a baking sheet with parchment paper.
Place the defrosted puff pastry sheet on a surface sprinkled with flour. Flatten the dough a bit to remove any wrinkles and make it smooth and even.
Cut the puff pastry sheet into squares or rectangles with a sharp knife or pizza cutter, in the size you want.
Make the Spinach Filled Pastries.
Put a spoonful of the spinach mixture in the middle of each pastry square or rectangle.
Fold one corner of the dough over the filling to meet the corner on the other side, creating a triangle or rectangle shape.
Press the edges of the dough together firmly to close it, and use a fork to create a decorative pattern on the edges if you like. Do the same with the rest of the dough and filling.
Brush the pastries with beaten egg before placing them on the baking sheet.
Gently apply beaten egg on top of the pastries to make them have a golden brown crust after baking.
Cook: Put the baking sheet in the oven that you preheated. Cook the spinach-filled pastries for 15-20 minutes until they puff up and turn golden brown.
Take the baked goods out of the oven and allow them to cool a bit before serving.
Serve and have fun:
Enjoy the delicious spinach-filled pastries warm as an appetizer, a light lunch with a salad, or a tasty snack whenever you like.
Enjoy the tasty mix of spinach and cheese wrapped in a crispy crust, savoring every yummy mouthful.
In conclusion, the Spinach Stuffed Pastry is a delicious savory snack that is great for any event. With its tasty spinach filling, creamy cheese, and flaky puff pastry crust, this dish will surely be loved by both family and friends. Whether you have them as a starter, a light meal, or a tasty snack, these pastries will be gone in no time, making everyone want more. Get your ingredients together and prepare to enjoy the delicious flavors of spinach-filled pastry!