Itīs difficult. Some Chefs have really good knowledge, some donīt understand anything and canīt simply prepare vegetables. If I ask at a 5 star ++ property for a vegetarian option and I get something like "plate of vegetables" itīs disgusting. At the moment Iīm on Mallorca which is sometime not easy as the like to use dripping a lot. As a pescarian Iīm not so keen about it. Even if they tell you itīs vegetarian I sometime doubt it.... Good excample from the past as I asked for a vegan menu: On it were bacon and a cheese plate...... 5 Diamond hotel and restaurant....
P.S. A few days ago at Cap Rocat nearly every dish at the 5 or 7 course menu had a meat component. I asked for a pescarian menu and they were able to do all courses without meat. And it was really good.