Chop the carrots, celery, onion, leek (if using), potatoes, and green beans into bite-sized pieces so they cook evenly. Mince the garlic.
3 medium carrots, 3 ribs celery, 1 medium yellow onion, 1 cup leek, 2 cups potatoes, 1 cup green beans, 3 cloves garlic
Place the carrots, celery, onion, leek, potatoes, green beans, and garlic in the bottom of the crockpot so they are closest to the heat.
3 medium carrots, 3 ribs celery, 1 medium yellow onion, 1 cup leek, 2 cups potatoes, 1 cup green beans, 3 cloves garlic
Lay the chicken breasts or thighs on top of the vegetables. Season lightly with a pinch of salt and pepper.
1.75 lbs boneless, skinless chicken breasts, 1.5 teaspoons kosher salt, 0.5 teaspoons black pepper
Pour in the chicken broth. Add the bay leaf, thyme, parsley, oregano, paprika (if using), remaining salt and pepper, and olive oil or butter if using. Gently stir around the sides without disturbing the chicken too much.
8 cups low-sodium chicken broth, 1 bay leaf, 1 teaspoon dried thyme, 1 teaspoon dried parsley, 0.5 teaspoons dried oregano, 0.5 teaspoons paprika, 1.5 teaspoons kosher salt, 0.5 teaspoons black pepper, 1 tablespoon olive oil or butter
Cover and cook on LOW for 6–8 hours or on HIGH for 3–4 hours, until the vegetables are tender and the chicken is cooked through and shreddable.
Remove the cooked chicken to a cutting board. Shred into bite-sized pieces with two forks, discarding any unwanted fatty bits if you used thighs.
1.75 lbs boneless, skinless chicken breasts
Return the shredded chicken to the slow cooker and stir. If adding egg noodles, stir them into the hot soup and cook on HIGH for 15–20 minutes, until tender. If adding rice, stir it in about 30–40 minutes before serving, until cooked through but not mushy.
1.75 lbs boneless, skinless chicken breasts, 1 cup egg noodles
Turn off the heat. Stir in the lemon juice and chopped fresh parsley. Taste and adjust seasoning with additional salt and pepper as needed.
0.5 lemon, 3 tablespoons fresh parsley, 1.5 teaspoons kosher salt, 0.5 teaspoons black pepper
Ladle the chicken soup into bowls. Garnish with extra parsley, cracked black pepper, and grated Parmesan if desired. Serve with crusty bread or crackers.
3 tablespoons fresh parsley, cracked black pepper, grated Parmesan cheese