Yes! A pie! (This was a big pie too!)
Seasoning a cast iron pan is basically the process of heating some type of fat on the pan, (lard, crisco, oil, etc), and heating it until the fat polymerizes, which creates a seal to prevent rust as well as a nice, nonstick surface to cook on. With a new pan, you'll need to do several layers before the pan is good to use, but once it is properly seasoned, it is a joy to cook on and SO easy to clean!