Spray crockpot liner with non-stick spray. Place chicken in the bottom and season with 1 teaspoon each of garlic powder, onion powder, and black pepper.
Top chicken with cream of chicken and celery soups. Add frozen vegetables and sprinkle remaining seasonings over the top.
Cover and cook on low for 6-8 hours or high for 4-6 hours until chicken is cooked and shredded.
15-20 minutes before serving, bake biscuits according to package instructions.
Shred the chicken with forks, stir to combine with gravy and vegetables, then serve with biscuits on top or side.
Notes
For a creamier texture, add a splash of milk or cream before serving.