Ravioli Filling

[sassy_red_head]

This weekend I plan on making a whack-load of ravioli (which I have never done before) and freezing it for later use throughout..  well, however long it will last...

Anyways, I want to have a bunch of different fillings and the only things I can think of right now are; 
-spinach and cheese
-shrimp and ???

I want to have at least five flavours so I can keep a good variety so give me your suggestions!