Hi, Shannon!
I'm right there with your daughter, I love The Muppets too! You're right about Muppet*Vision 3D at Hollywood Studios and that will definitely be a fun show for your family to attend. Check out this Disney Parks Blog article on the
Sights & Sounds at Disney Parks: A Frog, a Pig and a Dream.
There is not currently a meet and greet opportunity with our Muppet friends. I have been at Walt Disney World in past years during the Epcot® International Flower & Garden Festival and I've seen Kermit and Miss Piggy in a special, tiny cavalcade. Here's a link to an article on the Disney Parks Blog that actually features a video from
Disney's Honorary VoluntEARS Cavalcade at Disneyland Park back in 2010 that your daughter might like to watch!
You never know when new Characters will be added to the schedule as they are subject to change at any time. Be sure to pick up a Times Guide and check with a Cast Member when you arrive at Disney's Hollywood Studios for any Muppet appearances!
Thanks for stopping by the Moms Panel with your question, Shannon! Please feel free to come back again if you think of any other questions we can help with.
Have a Pixie Dusted vacation!
~Jackie