Preheat the oven to 200’C
Prick the potatoes all over with a fork or a sharp knife and rub in olive oil and salt.
Place in the oven proof dish and bake in the oven for 45 minutes to an hour, the time they take will depend on the size so check regularly. They are best when they have softened but are nice and crispy on the outside.
While the potato is cooking, mix together the remaining ingredients and season to taste
One the potato is cooked, cut open the potato and fill with the tuna mix
Serve with fresh salad and enjoy!