If freezing: Place all of the ingredients (except for the vegetable broth) into a freezer bag, and place in freezer until ready to use.
When ready to use: Dump the contents of the bag (or all the dry ingredients if not making ahread) into your slow cooker. Add the vegetable broth to the slow cooker before cooking.
Cook in your slow cooker for 6-8 hours on low or 5-6 hours on high.