How many cups of sweet potatoes are in a potato pie?

There's no standard recipe for a "potato pie", so there's no one answer to how many cups of sweet potatoes are in it.

Here's why:

* Potato pie recipes vary widely: Some are sweet potato-based, some use regular potatoes, and some combine both.

* Serving sizes matter: A recipe might use a different amount of sweet potatoes depending on how many people it's meant to serve.

To find out how many cups of sweet potatoes are in *your* potato pie, you need to check the specific recipe you are using.