My favorite place to get paninis near Bocconi. For 3.50 euro it’s a great deal, and they add some kind of herb or spice in the sandwich to make it really flavorful and unique. You can also ask them to add piccante(spicy) sauce, which is a delicious mayo-y sauce that isn’t too overbearingly spicy. The woman and the man who work there are also very friendly, and it’s a nice place to sit and do some reading(especially if you want to get away from the crowds in the Bocconi cafeteria during busy times).