Place ricotta, mascarpone, pumpkin, and powdered sugar in a large mixing bowl.
With an electric mixer, mix until smooth and well combined.
Add the vanilla, orange zest, pump pie spice, & salt until combined.
Fold in mini chocolate chips.
Using a pastry bag or sealable bag with a corner cut, fill cannoli shells with pumpkin filling.
You will need 3-4 tbsp for large cannoli shells.
Dust over the tops of each cannoli with powdered sugar and pumpkin pie spice
Sprinkle ends with mini chips
Serve immediately or refrigerate until ready to serve.
For best results serve these soon after filling because the cannoli shells will begin to soften.