An appetizer is part of a meal that's served before the main course. You might serve your dinner guests an appetizer of crab-stuffed mushrooms when they first arrive for dinner. Usually, an appetizer is a small serving of food — just a few bites — meant to be eaten before an entree, and often shared by several people.

What appetizers are served before the main meal?

In the U.S., 'appetizers', referring to anything served before a meal, is the most common term for hors d'oeuvres. Light snacks served outside of the context of a meal are called hors d'oeuvres (with the English-language pluralization).

Is it necessary to serve appetizer in every meal?

Appetizers aren't always essential, only because we are trying to eat LESS food these days. But they can still be served, and a “light” appetizer is nice. But they don't have to be elaborate. Having a little something to munch on (like nuts or chips and a dip or crackers and cheese) is perfect for this course.