Found this recipe in the small cookbook that came with the Crock Pot I purchased 10 or so years ago. Not sure why it's called a "casserole"--it's more like a stew, but oh, so so good! I didn't use the tapioca though. I waited until about 30 minutes before it was done, and I mixed 1 tablespoon corn starch with 1/4 cup water and added to the Crock Pot. It's fabulous!