Finally got the chance to check out this new place on my street, the Italian coffee/bar/pasticeria/restaurant called “Il Siciliano”. Great sweets, great coffee, nice staff, and they also serve beer. In the evenings they have a 14 CHF buffet (which I have not tried yet). You will need to reserve though.
Il Siciliano: 022 342 38 54 / 8 rue Caroline (tram stop Acacias)