Prepare the Pita Trees:

1. Cut each pita bread into 8 wedges to form triangle shapes resembling tree sections.
2. Lightly toast the pita wedges in the oven at 176°C for about 5 minutes until they are slightly crisp but not too hard.

Make the Mashed Avocado:

1. In a medium bowl, scoop out the avocados and mash them with a fork until smooth.
2. Add the lemon juice, minced garlic, salt, and pepper, and mix until well combined.

Assemble the Pita Trees:

1. Spread a generous layer of the mashed avocado mixture on each toasted pita wedge.
2. Top each avocado-covered wedge with halved cherry tomatoes, arranging them to resemble festive tree decorations.

Garnish and Serve:

1. Arrange the pita trees on a serving platter.

Enjoy:

1. Serve these festive avocado pita tree appetizers immediately, or store them in the refrigerator until ready to serve. They make a delightful and healthy addition to any holiday gathering.