Place chicken breasts in the crockpot.
Add diced onion, celery, potatoes, and frozen mixed vegetables.
Pour in the Cream of Mushroom soup.
Season generously with Creole Trinity & Herb blend, poultry seasoning, salt, and pepper.
Cook on HIGH for 6 hours.
Remove chicken, shred it, and stir back into the crockpot to create that thick, creamy filling.
Place biscuits on top, cover, and cook another 20–25 minutes until biscuits are fluffy and fully baked.
Spoon into bowls and serve it saucy, biscuit-topped, and COZY.