In the slow cooker, combine everything except for the frozen peas. Mix well to ensure the ingredients are fully incorporated.
Cover the slow cooker and cook on low heat for 5-6 hours or high heat for 3-4 hours, or until the chicken is cooked through and tender, and the vegetables are soft.
Around 30 minutes before serving, stir the frozen peas into the slow cooker.
Place cooked homemade or store bought biscuits on top of the chicken and vegetable mixture, brush the biscuits with melted butter if desired.
Serve the chicken and biscuits and garnish with chopped fresh parsley if desired. Enjoy!