Preheat oven to 350°. Line 2 baking sheets with parchment paper.
In a medium saucepan, cook sausage over medium heat until browned and crumbly. Add cream cheese, stirring until melted. Stir in roasted chestnuts. Remove from heat; let cool.
On a lightly floured surface, unroll crescent roll dough; separate at perforations. Place provolone down center of each triangle. Spoon 1 to 2 tablespoons sausage mixture down center of each. Roll up dough, jelly roll style; pinch seam to seal. Place on prepared pans. Brush with egg white. Place a small sage leaf in center of each roll.
Bake until golden brown, 11 to 12 minutes. Serve warm.
Recipe by Southern Lady Magazine at https://southernladymagazine.com/sausage-chestnut-crescent-rolls/