Hi Blueeyes.
I haven't made any more lasagne since, no, but the one that I had previously frozen I have thawed and re-cooked and it was much better. I do therefore think there's a lot to do with giving the sauce time to really soak into the pasta so am planning next time to try to cook it the day before (or in the morning of) the day I want it, then reheat when I want to eat it. Of course that will never happen
so what I will try to do is be more patient and let the dish 'rest' for a good while before I dish up. I am religious about letting meat rest - woe betide anyone who picks up the carving knife before my joint has relaxed! - so I don't see why I wouldn't be equally conscientious about lasagne.
I'm not sure when all this will happen though - I made a pasta bake with fusilli and a bol sauce, cheese sauce & grated cheese on top (ie, same ingredients as lasagne, but curly pasta instead of sheets), and BH announced he likes that best.