Chop the cucumber into cubes and cut the cherry tomatoes into halves or quarters (depending on the size). Put them in a large bowl along with chopped red onions and basil.
Drain the chickpeas, add them to the bowl and mix everything.
Cut the avocado into small cubes and add to the bowl along with the lemon juice, olive oil, salt and pepper. Mix all the ingredients carefully. Done!
Notes
Remember to chop the red onion into very small pieces so it doesn't overpower your salad.
If you use canned chickpeas, as we do, rinse them well before adding them to the salad.