01 - Place chicken breasts or thighs into the crockpot as the foundation layer.
02 - Arrange carrots, celery, onion, and garlic evenly over the chicken.
03 - Add chicken broth, freshly squeezed lemon juice, and lemon zest to the pot.
04 - Stir in thyme, oregano, bay leaf, sea salt, and black pepper until well distributed.
05 - If using rice or orzo, add the uncooked grains to the mixture now.
06 - Cover and cook on low setting for 6-7 hours or high heat for 3-4 hours, until chicken is fully cooked through and vegetables reach desired tenderness.
07 - Remove cooked chicken from the crockpot and shred using two forks, then return the meat to the soup.
08 - Taste the soup and add more salt or pepper if needed to enhance flavor.
09 - Ladle hot soup into bowls and sprinkle with fresh chopped parsley before serving.