The GUID for the metadata term displays along with the term name, which I don't want... I tried using the 'extract substring' action, but I don't seem to be able to get it to pull the correct part out. In SP Designer, you can format the field as plain text instead of a string and that does it, I don't see this option in Nintex (I see where I should be able to do this, but it only allows display as a string).
Here's an example from the email:
Position Title: Administrative Assistant|edaba7cc-fbdf-4142-8085-6735f6f64880