Tips

Once the omelet roll is filled, you can slice it and serve it either cold or warm by putting it in the oven for a few minutes.

You can replace half the zucchini with an equal amount of chopped onion.

For more variations, you can fill this roll with: ham and mozzarella, speck and scamorza, sausage and mozzarella, peppers and spreadable cheese, chopped sun-dried tomatoes, anchovies and mozzarella, gorgonzola and pears.