Yes, you sure can. We get that not everyone is a tuna fan, so feel free to swap the tuna for some other protein like chicken, tofu, eggs or any other protein of your choice. In fact, if you’d like, you can load this salad with enough cheese and beans or chickpeas and make it a completely vegetarian one. The basic idea of this salad would remain the same; however, it can be altered to suit your needs.