Wash your tomatoes and hollow them out. You need to do this carefully or you can easily pierce the skin. Discard the insides.

Drain the juice out of the tomatoes.

In a large bowl, put the chopped hard boiled eggs, and tuna and mix. Add the chives, capers and mayonnaise and blend together. Taste test. Add salt and pepper to taste.

Stuff each tomato with the tuna salad mixture. Have it mound slightly at the top. Garnish the tomatoes with chopped chives.

Refrigerate the stuffed tomatoes covered until ready to serve.

Serve cold within a few hours.