Drain water from tuna. In a large mixing bowl add all the ingredients. Stir with a large spoon until everything is mixed well. You can add more of any of the above to please your personal taste. Some even like grapes and peanuts in it. I prefer the basic.
Let it sit for a while in the frig. I seem to think it always taste better the day after. Flavors have a chance to blend. Toast some bread and have a bowl of tomato soup handy. It is great cold on a hot day right out of the frig.