Spray the crock of a 4 to 6-quart slow cooker with nonstick cooking spray. Combine the ingredients in a large bowl. Transfer the mixture to the slow cooker, cover, and cook on low for 4 to 6 hours.My recipe doesn't include sage or poultry seasoning, because my family has never included it. If you want to include it, I'd reccomend starting with 1 teaspoon of poultry seasoning and adding more to taste.