Avocados have a short shelf life, so freezing them can preserve them for later use. According to the California Avocado Commission, they can be frozen halved, sliced or mashed. Here’s how.
Halved or sliced—Cut open the avocado, remove the pit and peel. Slice if desired. Brush all surfaces with lemon juice. Wrap tightly, including the pit cavity, and press out all air. Place in a resealable bag and remove air, then freeze. When ready to use, let it thaw and enjoy.
Mashed—Slice open the avocado, remove the pit and peel. Drizzle with lemon juice and mash to desired consistency. Scoop into a resealable bag and remove air, then freeze. When ready to use, let it thaw and enjoy!
Source: www.californiaavocado.com/blog/september-2015/how-to-freeze-california-avocados