Navigli (the canals) is a real commercial/touristic area. It is not easy to find the right place to eat good food, but here for less 10€ you can taste amazing meals like lasagna carasau (a typical Sardinian bread) with zucchini and mint. In summer there is a nice terrace with wisteria.
Interior of this place is really simple, but the courtyard where it's located is an example of Milanese old building (casa a ringhiera) with a long common balcony on the facade. The owner is friendly and polite and the atmosphere is authentic.
A vegan menu available (not easy in Milan... usually only salads).
Mon-Sa: 12:00-14:30