Immune-Boosting Chicken Couscous Soup

Category: Warm, Cozy, and Comforting

This nourishing chicken soup combines pearl couscous with powerful immune-boosting ingredients like ginger, turmeric, lemongrass, and garlic. The balanced blend of vegetables includes onions, leeks, carrots, and celery for additional nutrients and flavor.

Easily prepared on the stovetop (35 minutes) or in an Instant Pot (faster option), this versatile dish works with either pre-cooked rotisserie chicken or raw chicken breasts. The finishing touch of fresh lemon juice and parsley brightens the flavors and adds extra vitamin C.

Perfect for cold winter days or when feeling under the weather, this hearty soup delivers comfort with health benefits.

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Last updated on Mon, 15 Dec 2025 16:37:36 GMT
A bowl of soup with chicken and vegetables. Bookmark
A bowl of soup with chicken and vegetables. | quicklish.com

This cold-fighting couscous chicken soup transforms ordinary ingredients into a powerfully healing meal that has pulled my family through many winter seasons. With a perfect balance of tender chicken, pearl couscous, and a vibrant broth infused with immune-boosting ingredients, this soup delivers both comfort and wellness when you need it most.

I first created this recipe during a particularly brutal flu season when my entire household was struggling with congestion. The aromatic steam rising from the pot seemed to work magic even before the first spoonful, and now it's our go-to remedy at the first sign of sniffles.

Ingredients

  • Onions and leeks create a sweet aromatic base that provides depth to the broth
  • Carrots and celery add classic soup flavor and important vitamins
  • Fresh ginger brings powerful anti-inflammatory properties and warming heat
  • Lemongrass contributes a subtle citrus note that brightens the entire soup
  • Garlic delivers immune-boosting compounds and essential flavor
  • Ground turmeric provides color and potent anti-inflammatory benefits
  • Chicken stock forms the flavorful foundation choose homemade if possible
  • Better Than Bouillon adds richness and depth without artificial ingredients
  • Shredded chicken delivers protein and substance use rotisserie for convenience
  • Pearl couscous creates a pleasing texture that absorbs flavors beautifully
  • Fresh lemon juice brightens the entire pot with essential vitamin C
  • Fresh parsley finishes with color and a light herbal note

Step-by-Step Instructions

Sauté the Aromatics:
Begin by heating a small amount of stock rather than oil for a healthier base. Add onions, leeks, carrots and celery, cooking until they soften completely about 6 minutes. This creates the flavor foundation for the entire soup, so take your time to develop sweet, aromatic notes.
Add Healing Ingredients:
Incorporate ginger, lemongrass, and garlic, cooking just until fragrant about 30 seconds. This step releases their essential oils without burning the delicate compounds. Sprinkle turmeric over everything, stirring to coat all vegetables for maximum color and benefit distribution.
Simmer to Perfection:
Pour in the remaining stock, add your chicken and couscous, then bring to a gentle boil before reducing to a simmer. Allow everything to cook together for 15 minutes, giving the couscous time to absorb the healing broth while remaining tender rather than mushy.
Finish with Brightness:
Complete your soup with a generous squeeze of fresh lemon juice, which not only adds vitamin C but also cuts through the richness with a bright acidic note. Season carefully with salt and pepper, then garnish with fresh parsley for color and a final herbal dimension.
A bowl of soup with chicken and vegetables. Bookmark
A bowl of soup with chicken and vegetables. | Quicklish.com

The lemongrass is truly the secret ingredient in this recipe. I discovered its power during a trip to Thailand where it featured in many healing soups. The subtle citrus notes it imparts have become so essential to my family that my children can identify when I try to skip it. Its aromatic compounds seem to open nasal passages almost immediately.

Storage and Reheating

This soup actually improves with time as the flavors meld together. Store leftovers in airtight containers in the refrigerator for up to four days. The couscous will continue absorbing liquid, so when reheating you may need to add additional chicken broth to reach your desired consistency. Reheat gently on the stovetop rather than microwaving to preserve the delicate flavors.

Ingredient Substitutions

This recipe offers wonderful flexibility. If pearl couscous is unavailable, substitute orzo pasta, small pasta shapes, or even rice with adjusted cooking times. For a vegetarian version, use vegetable broth and replace chicken with chickpeas or white beans. The lemongrass can be substituted with a teaspoon of lemon zest if you cannot find it fresh or in paste form. For extra cold-fighting power, consider adding a pinch of cayenne pepper.

Serving Suggestions

Serve this healing soup in warmed bowls with a side of crusty whole grain bread for dipping. A simple green salad with a light vinaigrette makes this a complete meal. For extra protein and creaminess, top each bowl with a dollop of Greek yogurt. During severe colds, serve the soup in a mug for sipping, which allows the aromatic steam to help clear congestion while delivering nourishment.

Cultural Inspiration

This soup draws inspiration from multiple healing traditions. The turmeric and ginger represent cornerstone ingredients in Ayurvedic medicine, while the lemongrass recalls Southeast Asian healing broths. The classic mirepoix base of onions, carrots and celery connects to European soup traditions. Together, these elements create a global approach to wellness that honors centuries of wisdom about food as medicine.

Recipe Q&A

→ Can I use different vegetables in this soup?

Absolutely! While the onions, leeks, carrots and celery create a classic mirepoix base, you can customize with additional vegetables like spinach, kale, bell peppers, or zucchini. Just add leafy greens during the final minutes of cooking to maintain their nutrients and texture.

→ What can I substitute for pearl couscous?

If you don't have pearl couscous, several alternatives work well: orzo pasta, small pastina, quinoa, or rice. Adjust cooking times accordingly as smaller grains may cook faster than pearl couscous. For gluten-free options, quinoa or rice are excellent choices.

→ How long will this soup keep in the refrigerator?

The soup will keep well in an airtight container in the refrigerator for 3-4 days. The flavors often develop and improve after a day. For longer storage, freeze portions in freezer-safe containers for up to 3 months.

→ Is fresh lemongrass necessary or can I use a substitute?

While fresh lemongrass provides the most authentic flavor, lemongrass paste is an excellent alternative as mentioned in the ingredient list. If neither is available, you can substitute 1 teaspoon of lemon zest plus 1/4 teaspoon of ginger to approximate the citrusy, aromatic quality.

→ How can I make this soup more filling?

To make this soup more substantial, you can double the amount of chicken or couscous. Adding a can of drained chickpeas or white beans also increases protein and fiber. For a creamier version, stir in a bit of coconut milk during the final minutes of cooking.

→ Can I make this soup vegetarian?

Yes! Replace the chicken stock with vegetable broth and omit the chicken. For protein, add a can of chickpeas or white beans. You can also add extra vegetables or cubed firm tofu. Adjust seasonings as vegetable broth may be less rich than chicken stock.

Cold-Fighting Couscous Chicken Soup

A healing soup loaded with anti-inflammatory ingredients to boost immunity during cold season, available for stovetop or Instant Pot.

Prep Time
15 min
Cook Time
20 min
Total Time
35 min
By: Grace

Category: Soups & Stews

Skill Level: Easy

Cuisine: Mediterranean-inspired

Yield: 4 Servings

Dietary Preferences: Dairy-Free

Ingredients

01 1 cup chopped onions (about 1/2 medium)
02 3/4 cup sliced leeks (white and light green parts only, about 1 medium)
03 1/2 cup sliced carrots (about 1 medium)
04 1/2 cup chopped celery (about 2 ribs)
05 1 tablespoon minced fresh ginger
06 1 tablespoon minced lemongrass or paste
07 2 cloves minced garlic
08 1/2 teaspoon ground turmeric
09 4 cups chicken stock
10 1/2 teaspoon Better Than Bouillon chicken seasoning (optional)
11 8 ounces cooked, shredded chicken (for stove top method)
12 3/4 pound raw chicken breasts (for Instant Pot method)
13 1 cup pearl couscous
14 1/2 lemon, juice only
15 Salt and freshly ground pepper to taste
16 Fresh parsley, chopped, for garnish

Steps

Step 01

Heat one tablespoon of the stock in a 4 to 5 quart Dutch oven or stock pot over medium heat. When it begins to sizzle, add the onions, leeks, carrots, and celery. Saute until the vegetables are soft, about 6 minutes. Stir in the ginger, lemongrass, and garlic, and heat until aromatic. Sprinkle the turmeric over the vegetables and stir.

Step 02

Add the stock, shredded chicken, and couscous, and bring to a light boil. Reduce heat to maintain a gentle simmer; cook for 15 minutes. Squeeze the half lemon into the soup, taste, and season with salt and pepper to your liking. Top with chopped parsley before serving.

Step 03

Turn on the Saute function on your Instant Pot. Add one tablespoon of oil and heat until shimmering. Add the onions, leeks, celery, and carrots, and saute until all are soft, about 8 minutes. Stir in the ginger, lemongrass, and garlic, and heat through until fragrant. Sprinkle the turmeric over the vegetables and stir. Turn off the unit.

Step 04

Add the chicken broth, Better Than Bouillon (if using), and couscous. Lay the chicken breasts in the pot. Secure the lid and make sure the valve is set to Sealing. Set the Instant Pot to manual high pressure for 5 minutes. When cooking is finished, allow natural pressure release for 7 minutes, then carefully quick release the remaining pressure.

Step 05

Remove the chicken breasts from the pot and shred with two forks (or chop). Return the chicken to the soup. Squeeze the lemon over the soup (taking care to catch the seeds), and add the parsley. Taste, and season with salt and pepper to your liking.

Notes

  1. This soup is loaded with anti-inflammatory ingredients such as ginger, turmeric, lemongrass, and garlic to support immune function.
  2. Rotisserie chicken works great for the stove top version for convenience.
  3. Both stove top and Instant Pot methods yield equally delicious results.

Required Tools

  • Dutch oven or stock pot (for stove top method)
  • Instant Pot (for pressure cooker method)
  • Sharp knife and cutting board

Allergen Information

Check each ingredient for possible allergens, and consult a healthcare professional if unsure.
  • Contains gluten (in couscous)

Nutritional Information (per serving)

These details are for guidance and shouldn't replace professional medical advice.
  • Calories: 288
  • Fats: ~
  • Carbohydrates: ~
  • Proteins: ~