So a bit of backstory:

I live in a Dominican neighborhood, and on recent trip to the local
supermarket, the S.O. and I decided to do a major pantry re-equip (you
know, where you buy all the things that you need in the kitchen, but
never buy on a quick run to the grocer's: spices, canned tomatoes,
cornstarch, etc.)

We racked up quite a bill (all worth it, if I say), and were rewarded
with fifteen free plantains.

That's about ten pounds.

I have no idea what to do with them.

I know about the standard preparation (sliced, fried), but I'm also
interested in other uses--I'm thinking maybe a plantain au gratin, or
something that takes a traditional dish and replaces the starch with
plantains....

Ideas?

Also, if you have any experience with Hispanic root vegetables (Yuca,
Jicama, Cassava, and others I don't know the English for) I'd be glad
to hear.

-a