Living in the land of the great Cuban sandwich there are times when I really need a panini press. But being frugal I don't like the idea of spending money on a one use item. A kitchen full of doodads that can't multi-function just doesn't work for me.
So, here is my two cast iron pan panini press:
Preheat both pans on the stove, place your sandwich in the larger pan and place smaller pan on top. This works beautifully, not only on sandwiches, but try it on a butterflied chicken to quicken the cooking process.
Keep on trying new (actually old) ways to use what we have in the kitchen, without spending money on an appliance that will sit in the cabinet most of the time.
Cuban Sandwich Recipe:
sliced roast pork
sliced Swiss cheese
Assemble sandwich, then press between two heated cast iron pans. Delicious!