Ouroboros
Coincidentia oppositorum
I hear ya'. Luckily we're usually only 10+ people and everyone knows now, but with new guests, yeah, mistakes have been made in the past.Just make sure the carnivores don't gobble up the veggie burgers, cause then the vegetarians have just the salad. (Speaking from personal experience here.)
What adds to the difficulty now is that we have some with allergies of different kinds. One can't eat salmon. Another can't eat egg or gluten. So we have to have gluten free buns for the burgers. It's easy to forget to have all the options for everyone.