A food & work place for Weekends (Milan)

Hi, guys, I'm searching for a nice and quiet place with WIFI (caffee/bar or restaurant) where they serve food all day on Saturdays and Sundays.

A kind of place in the city central zone (preferably,Zara/Isola, Centrale/Republica, Citta Studi close to any of related metro stations, but other zones are acceptable as well) where one could sit with a laptop working, eating, navigating on the net without being linked to the lunch or dinner time slots as it's normally done in italian food places.

It should be moderately calm and not too much full of people (like Upcycle, for instance) - with a possibility to have a separate table and not just a little bit of space.

Thanks in advance for recommendations,

Julia