Oof. I married into a part Italian family. Whenever we eat with them there is about 3x as much food as the people at the dinner could reasonably eat. When we host parties for friends my wife is deeply uncomfortable with "only" 1 pizza per 2 people because "what if most people want to eat more than half a pizza each?" On the other hand when I went to my cousin's wedding (in rural New England in the US) they served enough food for everyone to have one plate but not enough for seconds. My wife was scandalized that seconds weren't an option.