We often do that, or basically will choose an entrée each from either the Primi or Secondi, rarely would one of use do both.
However, I am in the camp that is prepared to spend some time at an Italian restaurant. We always, always start with a bottle of water, usually sparkling, do drink wine, sometimes a glass (my wife only drinks white, I prefer red, but will drink white), but usually a bottle. Always get a starter, I think some of the tastiest things on the menu are there. Then my wife nearly always just gets pasta, I prefer Meat or fish. Do not overlook the side dishes (Contorno), a nice plate of fresh vegetables can be a treat. Then dessert is a flip of a coin, sometimes we prefer a gelato and a walk later, but if they have something different... You will get a bit of a strange look if you do not order coffee after, I just cannot have caffeine that late, but I usually do get an amaro or digestif