I don't have any specifi recipes, but if you think about anything you cook that needs browning/sauteing/frying, and then needs slow cooking, that is an ideal recipe for a cast iron pan

ie Casserole: brown the meat and the onions in the cast iron pan, add the liquid and veggies and transfer to the oven

Anything you would use a slow cooker/crockpot for, same deal.....

The only other one I can think of is Toad in the Hole, where you cook the sausages first, on the stove top, pour over the batter and pop it into a hot oven for 20 mins.......