Well, I can grant you that perhaps the thread is my making a mountain out of a molehill, but, I promise, no scene was made at the restaurant

And, I both find it interesting and I can't sleep, so it's providing the benefit of interesting diversion.
The problem wasn't that she hadn't gotton a meal (she actually was quite full on fruit, veggies, and bread by the time the replacement quesadilla came out and didn't eat any of it!). Giving her the correct meal would only solve the lack of a meal.
No, comping the meal wouldn't have fixed the fact that she ate meat. But, as I've mentioned, comping the $4 kids meal is just the most common way a restaurant has of acknowleding they screwed up.
I mean, honestly, if had been you serving the meal. And someone had ordered something that wasn't supposed to contain meat and you served them meat. And they calmly informed you after they noticed. Would you say to them "It was less than an ounce of meat and while I respect your right not to eat it, I think you are making a moutain out of a molehill" I think most people would feel embarressed, if not on their own behalf, at least on behalf of the business they are representing.
So, yeah, four pages into a thread, it starts to seem a bit over the top. But, at the actual time,
I still believe that some sort of acknowledgement that a screwup had been made would have been nice. No, not a health defying screwup. But still, it's more than meat coming out medium instead of medium rare or some cold potatoes.