Pizza Pockets

8 ounces Italian turkey sausage

1 cup tightly-packed arugula (about 1 ounce)

4 ounces cream cheese, room temperature

1/3 cup grated Parmesan , plus

1/4 cup

1/2 teaspoon salt

1/4 teaspoon freshly ground black pepper

1 (13 1/2-ounce) package of store-bought pizza crust (recommended: Pillsbury)

All-purpose flour , for rolling out pizza dough

1 egg , beaten (for egg wash)

1 1/2 cups marinara sauce , store-bought or homemade