Slow cooker chicken kale soup simmers all day for a healthy, hearty dinner that's ready when you are. It's packed with lean chicken, lots of leafy green kale, cannellini beans, and loads of flavor.
Add all ingredients, except red wine vinegar, to 6-quart slow cooker, making sure chicken is submerged in liquid.
1 ½ lbs. boneless skinless chicken breasts, 6 cups lightly packed, roughly chopped kale, 2 cups sliced or diced carrots, 1 ½ cups sliced or diced celery, 1 cup chopped onion, 2 cloves garlic, pressed or minced, 2 cans (15.8 oz.) cannellini beans, undrained, 1 can (14.5 oz.) diced tomatoes, undrained, 1 ¾ teaspoons coarse salt, ¼ teaspoon red pepper flakes, or to taste, 1 bay leaf, ¼ teaspoon dried thyme, 4 cups low-sodium chicken broth, 2 cups water
Cover and cook on high for 4 hours, or low for 7 to 8 hours.
Remove chicken to plate, cool slightly, and shred with two forks. Return shredded chicken to crockpot.
Add red wine vinegar, stir well, and taste. Add more vinegar, salt, and pepper if needed.
1 tablespoon red wine vinegar, or to taste
Notes
Prefer dark meat? Boneless skinless chicken thighs may be substituted if you prefer dark meat.
Canned bean alternatives: Use any white bean, such as cannellini, great Northern, or navy beans. If you prefer, rinse and drain the beans before adding them to the soup.
Storage: Leftover soup can be refrigerated up to 5 days or frozen up to one month. Thaw overnight before reheating.