Here's a link to a recipe for the best ice cream cake you can imagine: www.supervalupaducah.com.
In the Advanced Recipe Search, find the Italian section, then choose Sicily as your region with dessert as your search topic. There you will find a recipe entitled "Cassata 'i Gelatu a Siciliana". This is an even more elaborate version of the ricotta-filled cake of the same name, and is actually considered by some to be a precursor to Spumone. Enjoy!!!!