I think it's mostly just taking good care of the meat and not being psychologically predisposed to thinking mule deer meat isn't good. I've had some excellent mule deer steaks from high elevation timber/sage country and low elevation desert sage.
I haven't shot a buck rutting in November so I don't have any opinion on that.
Thanks for the replies so far.
1) I know how to take care of deer meat.
Keep in mind, the same guy (me) who took care of all those whitetails my wife and kids and I have eaten over the past 30+ years, also took the same care of the one muley I've killed to date. I didn't do anything different. So that right there rules out "meat care" as the reason my wife didn't care for that mule deer, hence the question.
2) As for cooking, she and I have been cooking whitetail venison (and a few other species like javelina, mouflon, rabbit, dove, etc) for 30+ years as well. Granted, those aren't mule deer, so if there is something unique to how you prepare mule deer to make it as edible as whitetail for my wife, please share.
3) Why are folks bringing up corn-fed beef? We're used to wild whitetail (not corn fed) deer. I've hunted mostly public land and if anything, they are acorn-fed when I take them in the fall. But it's not like I've been shooting and cooking corn fed beef or whitetails.
When I shot my mouflon sheep, I pretty much had to eat the whole thing myself. She took one bite and said no thanks. Kids did the same. I made my son eat some because he was on the hunt with me. LOL
I didn't intend this to become a mule deer vs. corn fed whitetail or corn-fed beef debate. Just looking for others' experiences with muleys. Sounds like a few guys have had similar experiences. If it really is luck of the draw, then I won't worry about it and just "try again" and see what I get.