We have two vegetarians and a vegan in our close family.
When I’m catering for all of us, meat eaters too, then I provide a vegetarian alternative to the meat, and the vegan will either eat that or just the veg. She doesn’t like to be a nuisance so is a bit flexible when she’s being catered for at someone else’s house.
I wouldn't ask for anything special unless it was suggested by the host. I'd just eat whatever was non-meat. Just as someone who hates broccoli probably wouldn't come to my house and demand carrots instead.
I am a vegetarian and would be happy with a bean burger that just goes in the oven.
I do cater for non vegetarians.
I am not a fussy eater just because I don’t want to eat dead animals.