Into a medium-size mixing bowl, add chickpeas and mash using a potato masher. If using a mini chopper or food processor, add the chickpeas and pulse a few times - until the beans reach a smashed but still chunky consistency.
In the mixing bowl, add smashed chickpeas, red onion, celery, red bell pepper, vegan mayonnaise, DIjon mustard, garlic powder, onion powder, dried dill, sea salt, and ground black pepper.
Serve right away or cover and store in the refrigerator.