We had leftover smoked pork and a big bag of spinach in the fridge... there's a recipe for spinach, ricotta, and ham in Hazan... no additional thought was required. :-)
My one deviation from the recipe was the use of smoked pork loin instead of boiled ham. I'm sure this does give a different final result, but it still seemed like something that ought to work. Besides, compared to the change I did last time I made this recipe it's minor.
We ate the sauce over orecchiette and, as usual for recipes from Hazan, it was excellent.