This is a traditional southern Italian Easter pie. Though some like to bake it in a deep pan, I like the pie pan because it makes portions smaller and much less rich.
Set a rack at the lower third of the oven and preheat to 350 degrees.
To make the filling, your mixer should always be set on the lowest speed. Use the paddle attachment, if your mixer has one, to beat the ricotta cheese smooth, no more than 30 seconds