Bring salted water to a boil in a large saucepan. Cook the pasta until al dente according to the instructions on the packet. Stir every now and then to keep them from sticking together. Then drain in a colander.

In the meantime, preheat the oven to 175 ° C and grease the baking dish with butter.

Melt the butter in a pan and brown the breadcrumbs in it.

Pour the tuna, tomato and cheese mixture into the baking dish and smooth it out. Now spread the butter and breadcrumbs mixture over it and put it in the oven.

Bake the whole thing for about 40-45 minutes and then let it rest a little in the switched-off oven (it cooks a little longer).

Place on the preheated plate and just enjoy. With a delicious glass of wine, of course.