Cook chickpea pasta per package instructions.
While the pasta cooks, prepare all vegetables and avocado by washing and chopping. Set aside.
To make the dressing, in a small bowl, juice 1 lime, add tablespoon of avocado mayonnaise, salt, pepper, dill, parsley, and garlic powder. Mix and set aside.
Once the chick pea pasta has cooked completely, drain and rinse under cold water until the chickpea pasta is cooled completely.
In a large bowl, add chickpea pasta, tuna, vegetables, avocado, and black olives and mix together. Add the dressing and mix again. Place in the refrigerator for at least 1 hour before serving.