I meant to post this a couple of days after the last post on short ribs, but it honestly just slipped my mind.
We had a ton of leftovers and this is what I ended up making. Based it mostly on a recipe in Food and Wine from Thomas Keller:
Since I served this I've made more short ribs just for sandwiches with a couple of changes. I used arugula and Trader Joe's Cheddar/Gruyere melange and put them in the panini press. Served that version with root vegetable chips and it was divine.