Here's what I did. This is descended from a recipe from Bon Apetit.
1) 1 onion, thinly sliced into strings
2) 1 sheet of square Trader Joe's puff pastry (I *LOVE* this stuff)
3) 1/4 cup of honey and 1/4 cup white wine, mixed in a bowl
4) 1/2 package of bacon finely chopped
5) About 1/4 cup of creme fraiche with some nutmeg thrown in
Cook the bacon until crisp and drain. Mix together honey, wine and some bacon drippings in a bowl and then toss the onions with that.
Roast the onions flat for at least an hour until they start to carmelize. (The recipe said 30 minutes--NOT! This is where I started thinking it was too much prep time)
Roll out the the puff pastry so that it's pretty thin and then fold over the edges and smush them down with a fork. Spread the creme fraiche over the pastry. Spread the roasted onions and then top with bacon. Bake for another 30 minutes or so until the puff pastry puffs and turns brown.
It tastes marvy, and I'll definitely try it again. However, next time I'm streamlining in a major way. Click here for the recipe in progress.