Cook pasta according to package directions. Drain, rinse in cold water, drain again and set the pasta aside.
Drain and rinse black beans. Drain corn and garbanzo beans.
In a large bowl, combine pasta, black beans, corn, garbanzo beans, cilantro, green pepper, cheese and olives.
Add about 1 cup salsa and mix to combine.
Cover and refrigerate for at least 1 hour for the flavors to combine.
Before serving, season to taste by stirring in up to 1 cup more salsa.
Line the serving bowl with tortilla chips and spoon the salad in the center. Garnish with additional tortilla chips, a dollop sour cream, salsa, and a sprig of cilantro. .