As warm autumn colors begin to blanket the trees outside, I’ve found myself craving comfort food that wraps me in a cozy hug. That’s when I decided to transform my leftover chicken into something truly special: a Hearty Leftover Chicken Soup with Butternut Squash & Kale. The moment I stirred the pot, the rich aroma of sautéed onions and garlic melded beautifully with the sweet notes of butternut squash and the earthy taste of kale.

This soup is more than just a way to use up leftovers; it’s a quick and delightful journey into the heart of fall flavors. Packed with nutrition and boasting a satisfying heartiness, it keeps my spirits lifted during chilly evenings. Plus, it’s remarkably versatile—you can easily make it vegetarian or give it a spicy twist! Let me show you how to whip up this nourishing bowl of joy that’s bound to become a family favorite.

Why is Leftover Chicken Soup with Butternut Squash & Kale a Must-Try?

Comforting Flavor: The combination of sweet butternut squash and hearty kale creates a balanced dish that warms both body and soul.

Effortless Preparation: With straightforward steps and minimal chopping, you can whip this up in less than an hour.

Nutritious: This soup is brimming with vitamins and fiber, making it a wholesome choice for any meal.

Versatile Options: Want to switch things up? This recipe adapts easily to various diets, from vegetarian to spicy, just like my vegetarian chicken soup suggestion.

Crowd Pleaser: Perfect for family dinners or cozy nights in, this soup’s rich flavors and satisfying texture are sure to impress.

Leftover Chicken Soup Ingredients

For the Soup Base:

Olive Oil – A high-quality extra virgin variety adds healthy fats and flavor.
Yellow Onion – Adds beautiful aroma and sweetness; shallots can be used for a milder taste.
Carrots – Provide sweetness and vibrant color; feel free to substitute with parsnips for a different twist.
Garlic – Fresh garlic elevates the flavor profile; you can use pre-minced options if you’re in a pinch.
Butternut Squash – The star of the soup, lending a velvety texture and sweetness; frozen, pre-cubed squash works wonderfully here.
Leftover Cooked Chicken – A fantastic way to utilize leftovers, this adds heartiness; poached chicken breast can be used as an alternative.

For Seasoning:

Herbs (Rosemary, Thyme, Basil) – Fresh herbs provide depth and aroma; if using dried, reduce the quantity by half.
Crushed Red Pepper – Adds a gentle kick to the soup; skip it for a milder version or swap with black pepper.
Black Pepper and Sea Salt – Essential for seasoning; adjust to your taste for the perfect depth of flavor.

For the Broth:

Chicken Broth & Water – Forms the soup’s base; opt for low-sodium chicken broth to control saltiness.
Fire Roasted Diced Tomatoes – Introduces acidity and complexity; fresh diced tomatoes can be substituted if preferred.

For the Greens:

Kale – Boosts nutrition and texture; pre-chopped kale saves time, but feel free to switch with any leafy green like spinach.

Embrace the warmth of this Leftover Chicken Soup with Butternut Squash & Kale and enjoy every comforting spoonful!

How to Make Leftover Chicken Soup with Butternut Squash & Kale

Prepare the Vegetables:
Chop the yellow onion, carrots, garlic, and butternut squash into bite-sized pieces. Shred your leftover cooked chicken into strips to ensure it’s ready to mingle with the other ingredients.
Heat the Oil:
In a large pot, warm the olive oil over medium heat until it shimmers. This will enhance the oil’s flavor and ensure a perfect sauté.
Sauté Onions and Carrots:
Add the chopped onion and carrots to the pot. Sauté them for about 5 minutes, stirring occasionally, until the onions are translucent and fragrant.
Add Garlic and Squash:
Stir in the garlic and butternut squash, continuing to cook for another 5 minutes. The squash should become slightly tender and start to release its sweet aroma.
Mix in Chicken and Spices:
Incorporate the shredded leftover chicken along with rosemary, thyme, basil, and crushed red pepper. Mix everything thoroughly to combine the flavors.
Pour in Broth and Tomatoes:
Add the chicken broth, water, and fire-roasted diced tomatoes to the pot. Bring the mixture to a boil, allowing all the flavors to bloom together.
Simmer to Perfection:
Reduce the heat and let the soup simmer for about 20 minutes. This will cook the vegetables until they are tender and flavorful.
Add Kale and Serve:
Lastly, stir in the chopped kale and allow it to wilt, which should take just a couple of minutes. Serve hot, optionally topped with grated Parmesan for extra flavor.

Optional: Drizzle with a bit of lemon juice for a bright finish.
Exact quantities are listed in the recipe card below.

Expert Tips for Leftover Chicken Soup

Uniform Chopping: Ensure all vegetables, especially the butternut squash, are cut into similar sizes. This promotes even cooking, avoiding any undercooked or overly soft pieces.
Fresh vs. Dried Herbs: While fresh herbs add vibrancy to your Leftover Chicken Soup, if you only have dried, remember to use half the amount to prevent it from overpowering the dish.
Taste Before Serving: Always sample your soup before serving. Adjust the seasoning with salt and pepper to add depth and balance to the flavors.
Sweeter Squash: If you prefer a sweeter flavor, roast your butternut squash beforehand. This caramelization enhances the overall taste of the soup.
Choosing Chicken: Any leftover cooked chicken is perfect for this recipe. For a different flavor profile, consider using smoked chicken or poached chicken breast as an alternative.
Kale Substitution: If kale isn’t available, feel free to use spinach or Swiss chard instead. They will also provide a nutritious boost and maintain the comforting texture of the soup.

Make Ahead Options

These Leftover Chicken Soup with Butternut Squash & Kale are perfect for busy home cooks looking to save time during the week! You can chop all your vegetables (onion, carrots, garlic, and butternut squash) up to 24 hours in advance and store them in an airtight container in the refrigerator. The shredded leftover chicken can also be prepared ahead of time, making assembly a breeze. When you’re ready to serve, simply heat olive oil, sauté the veggies, add the chicken, and mix in the broth and tomatoes. This approach ensures your soup maintains its fresh flavors while providing a comforting meal with minimal effort!

What to Serve with Leftover Chicken Soup with Butternut Squash & Kale?

Nothing warms the heart quite like a comforting bowl of soup paired with delightful sides that enhance the experience.

Crusty Bread: The perfect companion, crusty bread is ideal for dipping into your soup and soaking up all the rich flavors. Try sourdough for its tangy notes that contrast beautifully with the sweetness of the squash.
Garden Salad: A fresh garden salad loaded with crisp greens and a light vinaigrette provides a refreshing crunch that complements the hearty soup. The brightness of the vegetables contrasts wonderfully with the soup’s cozy texture.
Cheesy Garlic Biscuits: Fluffy, buttery biscuits with a hint of garlic and melted cheese are a delightful pairing. They add a touch of indulgence that perfectly balances the nourishing elements of the soup.
Quinoa Salad: Light and nutty quinoa salad mixed with cherry tomatoes, cucumber, and a drizzle of lemon can elevate your meal. It’s a nutritious option rich in protein and adds a fresh twist.
Roasted Vegetables: A blend of roasted seasonal vegetables brings earthy flavors that harmonize with the soup. The caramelization adds depth and an irresistible sweetness, enriching the dining experience.
Apple Crisp: For dessert, an apple crisp topped with a scoop of vanilla ice cream offers a sweet, warm finish. The spices in the crisp enhance the comforting fall flavors of your soup.
Chardonnay: A glass of chilled Chardonnay can brighten your meal, cutting through the richness of the soup while enhancing the sweet notes of butternut squash.
Herbal Tea: To complement this cozy meal, a soothing herbal tea like chamomile or ginger warms the soul and aids digestion, making it a delightful end to your comforting dinner.

How to Store and Freeze Leftover Chicken Soup

Room Temperature: Allow the soup to cool slightly before serving, but do not leave it out for more than 2 hours to maintain safety.
Fridge: Store the Leftover Chicken Soup with Butternut Squash & Kale in an airtight container in the refrigerator for up to 3 days. It’s best to consume it within this timeframe for optimal flavor and freshness.
Freezer: For longer storage, freeze the soup in individual portions or a larger container for up to 1 month. Make sure to leave some space for expansion to prevent the container from cracking.
Reheating: When you’re ready to enjoy the soup again, reheat gently on the stovetop over medium heat, adding a splash of water or broth if it has thickened too much.

Leftover Chicken Soup Variations

Customize your leftovers with these delightful twists that will spark your creativity and tantalize your taste buds!

Vegetarian: Replace chicken with chickpeas or white beans and use vegetable broth for a fulfilling meat-free option. This change still delivers nutrients while offering a different texture.
Seasonal Veggies: Incorporate sweet potatoes, green beans, or celery for added color and flavor. Each addition brings a unique taste and nutrient profile, making it even more comforting!
Spicy Kick: Enjoy some heat by doubling the crushed red pepper or adding a splash of hot sauce. This twist transforms the soup into a delightful spicy treat!
Creamy Addition: Stir in a dollop of cream or coconut milk for a rich, velvety texture. This variation elevates the soup while maintaining its soothing essence.
Herb Boost: Experiment with different herbs like cilantro or parsley to refresh the flavor. Fresh herbs can add brightness, delivering a delightful contrast to the hearty broth.
Smoky Flavor: Incorporate smoked sausage or smoked paprika for an enticing depth. This twist introduces a complex flavor that pairs beautifully with the squash and kale.
Frozen Shortcut: Use frozen mixed vegetables instead of fresh to make this dish super convenient. It’s a perfect way to adapt the soup for a last-minute dinner.
Lemon Zest: A sprinkle of lemon zest before serving can brighten the entire dish! This zesty addition brings a fresh note that complements the heartiness of the soup beautifully.

Leftover Chicken Soup with Butternut Squash & Kale Recipe FAQs

What is the best way to choose butternut squash for the soup?
Absolutely! When selecting butternut squash, look for one that feels heavy for its size and has a smooth, firm skin without any dark spots or blemishes. The color should be a uniform beige to tan. If you notice any soft or dark spots, it’s better to skip that one as it might be overripe.

How should I store leftover chicken soup?
Very simple! Store your Leftover Chicken Soup with Butternut Squash & Kale in an airtight container in the refrigerator. It will stay fresh for up to 3 days. Make sure to let it cool slightly before placing it in the fridge to avoid condensation inside the container.

Can I freeze leftover chicken soup, and how should I do it?
Certainly! To freeze your soup, let it cool completely before transferring it to airtight containers or freezer bags, leaving some space for expansion. You can freeze it for up to 1 month. When you’re ready to enjoy it again, thaw it in the fridge overnight and reheat on the stovetop, adding a splash of water or broth if it thickens too much.

What if my soup turns out too thick?
No worries at all! If you find that your soup is thicker than desired, simply add a little extra chicken broth or water until you reach your preferred consistency. Stir well and reheat gently to combine the flavors without losing any deliciousness.

Are there any dietary considerations I should keep in mind?
Absolutely! If you’re preparing this soup for someone with food allergies, be mindful of the ingredients. The recipe is naturally gluten-free as long as you use gluten-free chicken broth, which is a safe choice. For a vegetarian or vegan version, you can replace the chicken with chickpeas or white beans and use vegetable broth instead.

What can I add if I want to spice things up?
The more the merrier! If you enjoy a little heat, consider adding more crushed red pepper or even a dash of hot sauce to cater to your taste. Sautéing some minced jalapeños with the onions can also give it a delightful kick right from the start.