Strawberries and Cream Turnovers

Ingredients:
3 Sheets of Puff Pastry, thawed
4 oz Cream Cheese, softened
1/4 cup of Granulated Sugar
½ tsp of Vanilla Extract
½ tsp of Lemon Zest
1Egg Yolk

For the Filling,
¼ cup of Strawberry Preserves
1 cup of Chopped Strawberries
¼ cup of Granulated Sugar
2 tsp of Lemon Juice
2 tsp of Corn Starch
Pinch of Salt
Egg Wash (one egg beaten with 1 tbsp of water)
Powdered Sugar, optional