There might be issues with allergies. Can you have a restaurant that simply refuses service to people who are allergic to the one item on the menu?
If I find nothing on the menu I can eat, the restaurant is not refusing me service. I am declining to eat there. No restaurant is (yet) obliged to provide vegetarian choices, or to cater to allergies beyond declaring e.g. the presence of nuts.
There might be issues with allergies. Can you have a restaurant that simply refuses service to people who are allergic to the one item on the menu?
Do you count “restaurants” that make the one meal, package it, freeze it, and distribute it to grocery stores?
If I find nothing on the menu I can eat, the restaurant is not refusing me service. I am declining to eat there. No restaurant is (yet) obliged to provide vegetarian choices, or to cater to allergies beyond declaring e.g. the presence of nuts.