What do you call a chef in a five-star hotel?

Chinese food is called "master", or directly called chef, chef, chef. Western food, commonly known as chef, is a formal official title in both English and French, which means that the person who can be the boss behind the restaurant is more important than many restaurant owners.

If the other party is a team of chefs, who is the chef, who is the dessert chef and who is the assistant chef? In this case, everyone can call him Mr. except the chef, and everyone understands.