Into a 4-quart slow cooker, add the onion, potato, and chicken.
Place the cream of celery soup, cream of chicken soup, broth, and seasonings in a small bowl. Mix well until combined, then stir this into the chicken mixture.
Set to cook for 4 hours on high or 7 hours on low.
Then, add the mixed veggies and continue to cook for another hour.
In the meantime, bake the biscuits following the recipe or in a refrigerated biscuit container.
Give the pot pie a good stir and spoon it into bowls. Before serving, top with biscuits. Enjoy!
Notes
How To Make it Gluten freeUse cream of celery that is labeled gluten-free such as Mom's Place.It's hard to find a gluten-free substitute for cream of chicken soup, but you can make homemade gluten-free easily.Check the label for gluten-free Refrigerated biscuits. Some options are Krusteaz, Pillsbury, and Bob's Red Mill. These are usually made with arrowroot, rice flour, or tapioca.