Drain and Prepare the Tuna

Drain the water from the tuna in water by straining it through a fine-mesh sieve and pressing it down with a spoon.

Add the Vegetables, Mayo, and Seasonings

Add your drained canned tuna to a bowl, and add the veggies, seasonings, and mayo, like mustard, diced cucumber, diced onion, salt, black pepper, lemon juice, and chopped coriander.

Mix Until Well Combined

After adding all of the ingredients, give everything a good mix.

Adjust Seasoning and Chill

This step is optional, but if you are a beginner, you should give the salad a taste test and adjust the seasoning.

Now, chill the salad in the refrigerator before serving.