For most crock pot cooking I don't use these, but oatmeal is a terrific candidate for a [crock pot liner like these][1]. They are probably available at your local grocers. When your done, you just lift out the liner and throw it away. I use them for queso and they work wonderfully.

![enter image description here][2]


  [1]: http://www.amazon.com/Reynolds-Metals-00504-Cooker-Liners/dp/B00578EKRY/ref=sr_1_1?ie=UTF8&qid=1340833079&sr=8-1&keywords=crock%20pot%20bags
  [2]: https://i.sstatic.net/iDiPp.jpg