Not positive but pretty sure you cannot get anything "to-go" from Cafe Orleans. Also, Cafe Orleans is the only place with pommes frites. I have only been to Cafe Orleans once and was not impressed by the pommes frites. Ours arrived limp and cold. I know many others rave about them, so I guess I got a bad batch.
If you want an alternative place to get similar type foods, consider the Jazz Kitchen in downtown Disney. The sit-down restaurant serves some really good fries; my favorite are the garlic fries. They also serve beignets that are tasty but not in the shape of Mickey. The take-out window at Jazz Kitchen sells the beignets as well, and while they do have fries, I think they are just the Cajun fries, not the garlic ones.