Join Date: Feb 2006
Location: The Okanagan, B.C.
Oh sure, I can do that. I was just embarrassed that I asked the question when the answer was available and I was just looking for the wrong thing the whole time.
You have to make sure your VLC player is up to date so that you have version 3.0 at least. Once you do, there's a setting under Playback for Renderer. You need Chromecast (obviously) and it should be on and the TV you are using it on needs to be on too. If that's the case, under Renderer it will give you an option for Chromecast. Then you open your file and "Play" it. Once you try and play it, they'll be a security certificate that you'll need to accept. After that, it apparently starts playing.
I haven't gotten my Chromecast yet, so I haven't tried these instructions myself. The main mistake I made was a simple one -- foolishly not realizing I hadn't updated my VLC player for quite a while and the version I had didn't have the Chromecast option.