Well, it's hard to say. If everything was ok, their meals were not bad, even common people ate quite well. Maybe even better than we do, if you consider that everything was organic, bio etc. There was less diversity in food, but not that big if you consider how much food was imported (spices, almonds etc.).
The problem was that the famine could start quite easily. There could be war, or just bad weather, and the situation drastically changed in few years. And then you could find people eating really anything - spoiled meat and flour, bread baked partially from hay etc.