Place the chicken breasts into the bottom of a crockpot.
4 boneless, skinless chicken breasts
Sprinkle the garlic powder, oregano, poultry seasoning, kosher salt, and black pepper over the chicken.
1 teaspoon garlic powder, 1 teaspoon dried oregano, ½ teaspoon kosher salt, ½ teaspoon black pepper, ½ teaspoon poultry seasoning
Add the finely diced onion in an even layer over the chicken and then top with the frozen vegetables.
1 yellow or white onion, 3 cups frozen mixed vegetables
In a medium mixing bowl, whisk together the cream of chicken soup, cream of celery soup, and chicken broth until combined. Pour the soup mixture over the ingredients in the crockpot.
1 can (10.5 oz) cream of chicken soup, 1 can (10.5 oz) cream of celery soup, 1 cup chicken broth
Cook on LOW heat for 6-8 hours.
Remove the chicken from the crockpot and use two forks to shred it. Return the shredded chicken back to the crockpot and stir everything to combine. Set the crockpot to WARM while you prepare the biscuits.
Bake the biscuits according to package directions.
1 tube (16.3 oz) refrigerated Pillsbury Grands biscuits
Ladle the chicken pot pie into bowls and serve with a freshly baked biscuit on top. Enjoy!