It seems I figured it out with a little messing around.
I configured the jenkins job in the Build section and added the "Execute shell" command from
nunit-console "$WORKSPACE/path/to/Tests.dll"
and then later, as a post build event, I took the resulting xml (with the NUnit plugin for jenkins) and it displays all this in the web interface.
One caveat note is a simple project, so I don't know if this will work in mono with more advanced tests, etc.
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