I didn't know what to expect, but this pie was delicious! The texture is like a custard, or flan, which I love. I tasted the filling after adding the butter/milk mixture, and felt like it wasn't quite sweet enough, so I added more sugar--a bit less than 1/4 of a cup. :)
This was fun! I used part skim ricotta and cream cheese, and it turned out light and fluffy. The crowd enjoyed it!