Avocados are classified as a fruit. It grows on trees and has a large seed in the middle. The skin is inedible with the flesh, or meat, being green in color and delicious once ripe. The fruit is smooth and creamy, not sweet at all but rather rich tasting. It can be used in both savory and sweet dishes and is generally served raw. Avocados brown easily once exposed to the air but lemon or lime juice can prevent this. Avocados are a great fat source and are used plenty by vegans and vegetarians. I love them on sandwiches and burgers. One of the most popular snack food made from avocados is guacamole, a dip or condiment used for many Mexican meals.