The primal pleasure of cast iron on the grill

Last night, our pork roast drippings went to good use.  I roasted, on the grill, a mix of fingerlings and brussel sprouts to accompany our pot roast.  I don't think I've ever cooked on cast iron on the grill.  It was almost a bit too hot, should've moved it a bit indirect, but the veggies were pretty nice.  Next time I'll stagger the potatoes and sprouts (spuds first).