Yes, the 'I'm royalty-so-I-can't-cook' terrible stew trope. They really made Éowyn out to be such a dingbat blonde in that scene. I mean, screwed up
stew and she didn't even know how bad it was? That whole scene was 'cheese'. But then again, it was a P.J. Walsh & Co. fanfic so that's how they wanted to present it.
Maybe a possible reason the stew was so bad was because of zero seasoning and the Warg-Meat in it?