Preheat the oven to 200℃.
Line a baking tray with some parchment paper.
Before we bake the pizza pockets you must have the above sauce ready and cooled.
Also have sautéed mushrooms ready. Heat oil in a wide pan over high heat. Add the mushroom slices.
Add salt and mix well. Then allow the mushrooms to cook. Don't stir too often.
Once cooked and they appear brownish, take the pan off the heat.
Allow the mushrooms to cool down completely.
Roll out the pastry to a thickness of ¼ inch.
I had two pieces of the pastry which I rolled out to squares of 8 inches by 8 inches.
Cut into squares of 4 inches by 4 inches. You will have 8 pieces in total.
On 4 of the rolled out puff pastry pieces, smear about 1 tablespoon full of the pizza sauce. Don't smear till the edges.
Top it with the sautéed mushrooms and sliced onions.
Add about 2 tbsp of cheese or a bit more.
Cover with the other pieces of the puff pastry.
Press down the edges with your fingertip. Then press down with a fork.
Prick the top pastry with the fork in several places.
Brush with some milk or egg.
Bake for 25-30 minutes or till the pastries puff up and are golden brown in colour.
Remove the tray from the oven.
Serve Puff Pastry Pizza Pockets with some salad on the side.