Combine all of the ingredients EXCEPT the cucumber in a bowl, mixing lightly with a fork.
Taste the tuna salad and add sprinkles of salt and pepper until it is very flavorful.
Right before serving, stir in the diced cucumber.
Serve with crackers, pita, or on sandwiches. Enjoy!
Notes
This can be made up to three days in advance, but may become watery due to the cucumber. If that happens, just drain the water off the top of the tuna salad, OR add the cucumber right before serving.
Tuna in oil or water works fine for this recipe; use whatever you prefer.
Dried dill may be subbed instead of fresh, use 2 teaspoons dried dill.