Cheese Steak Panini - indulgent, using thinly sliced rib eye steaks. If you don't have a Panini Press, which most people don't, I know I don't, just use your usual method for making grilled cheese - I use a cast iron skillet. You can always try it on a George Foreman Grill or similar, if you have one of these. Either way, this is a sumptuous sandwich. Get the napkins ready !