Blend the nori sheet in a powerful blender until you get nori flakes. You can also finely chop the nori sheet with a knife. Set aside.
Add the chickpeas to a bowl and mash them with a fork or a potato masher. You can also use an immersion blender if you want.
Incorporate all the remaining ingredients, stir, and mash again until well combined.
Serve your chickpea tuna salad with vegan bread, lettuce, and tomato slices to make a sandwich or use it to top a salad, in a wrap, or on crackers for a snack.
Keep the leftovers in an airtight container in the fridge for up to 5 days.
Notes
The nori sheet is optional, but it gives the tuna a fishy flavor.
I’ve only made this chickpea tuna salad using canned chickpeas, but you could probably cook them from scratch too.