Pasta Salad with Zucchini

Cook the penne in plenty of boiling salted water until al dente.

Drain the pasta, rinse under cold water and let it drain very well.

Wash and trim the zucchini, halve lengthwise and cut into thin slices.

Heat the olive oil in a pan, briefly sauté the zucchini, season with salt, pepper and a splash of Worcestershire sauce, cover and simmer for about 8 minutes.

Remove the zucchini from the heat and let cool.

Flake the tuna coarsely with a fork.

Gently combine the pasta, zucchini and tuna.

For the vinaigrette, whisk together the vinegar and mustard, stir in the chives, season with salt and pepper and stir in 3 tbsp olive oil.

Pour the vinaigrette over the salad and mix everything thoroughly.

Let the pasta salad sit for about 30 minutes.