> a large grilled mushroom

I really want to know why restaurants keep thinking this is a good alternative. I've never had one that wasn't just a mess to eat, and it's weirdly common to have people think it contains a significant amount of protein. However, I'm very happy with most veg patties, and would love halloumi as an option over Beyond any day.

Many non-vegetarian restaurants don't seem to care about the vegetarian options, and just offer almost default options. It's probably down to the attitude of the chef - similarly to how you can sometimes tell whether the chef is a 'sweet' lover or not, by the relative quality of the main courses vs. the desserts.

I first noticed this years ago when eating out with a (my first?) vegetarian friend in a variety of (omnivorous) restaurants and gastropubs. The number of times he'd have to choose the goats' cheese tart became a running joke.