Thanks for taking a look! I thought they were grilled on some sort of BBQ. I have one, but flames might not be possible.
Hmm, I would say the outside has a slight crisp/crusty texture in parts (why I think it's a rub). The only taste I can absolutely identify is salt. There may be some magic in there, but I can't identify anything particular. Of course the middle depends on how rare/cooked it is, but I don't think it's marinated so it's soaked all the way through. I do seem to recall that they mention that the beef is "aged" (sounds pretty gross now that I think about it) so that may have something to do with the magic.
On the other note, I'm a fan of stir fry and stew, so I'm interested to learn what you can share about those!
Swiss mushroom gravy sounds wonderful too! However, I'm on a very low carb diet, so not sure I can partake, but I'm always interested in learning!