Green Immunity-Boosting Vegetable Soup

Featured in: Seasonal Cooking Ideas

This vibrant green soup combines spinach, asparagus, broccoli, and soaked cashews to create a silky, nutrient-dense bowl. The cashews provide natural creaminess without dairy, while the vegetable trio delivers essential vitamins and antioxidants. Ready in just 40 minutes, this soup offers 8 grams of protein per serving and adapts easily to nut-free preferences using coconut milk or silken tofu.

Updated on Wed, 28 Jan 2026 15:46:00 GMT
Vibrant green Big Green Immunity-Boosting Vegetable Soup blends spinach, asparagus, and broccoli into a silky, steaming bowl, garnished with lemon. Save to Pinterest
Vibrant green Big Green Immunity-Boosting Vegetable Soup blends spinach, asparagus, and broccoli into a silky, steaming bowl, garnished with lemon. | spoonmargin.com

The first time I made this Big Green Immunity-Boosting Soup was during that brutal February cold snap when everyone in my household was fighting something. The kitchen windows steamed up as the broccoli and asparagus simmered, creating this protective barrier between us and the icy world outside. I remember dipping my wooden spoon into the finished soup, taking that first velvety sip, and feeling an immediate sense of nourishment - like my body was literally saying 'thank you' with each spoonful.

I brought a thermos of this soup to my friend Emma after she had her wisdom teeth removed last winter. She texted me three days later asking for the recipe, saying it was the only thing that made her feel human during recovery. We now joke that this soup has healing powers beyond science, though I suspect it's just the perfect combination of comfort and nutrition when the body needs gentle care.

Ingredients

  • Broccoli and asparagus: These green powerhouses are the backbone of this soup, providing that vibrant color that looks like health in a bowl.
  • Cashews: After forgetting to soak them overnight once, I discovered that a quick 15-minute hot water soak works perfectly, creating that silky texture without the wait.
  • Lemon juice: That half lemon at the end brightens everything up, cutting through the richness and making all the vegetable flavors pop in a way that surprised me.
  • Nutmeg: Though optional, this warming spice adds a subtle complexity that elevates the soup from simply nutritious to genuinely crave-worthy.

Instructions

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Build your flavor base:
Heat that olive oil until it shimmers slightly, then add your onion, garlic, and leek. The kitchen should fill with that sweet, aromatic smell that tells you good things are happening.
Add your green heroes:
When you toss in the broccoli and asparagus, notice how vibrant they look against the translucent onions. This quick sauté helps release their flavors before the liquid goes in.
Create your soup canvas:
As the broth and water come to a gentle boil, you might notice the vegetables becoming a brighter green at first. Reduce to that perfect slow simmer where small bubbles just barely break the surface.
Introduce the creaminess:
The spinach will practically disappear as it wilts, while the cashews sink to the bottom. These two ingredients are what will transform your soup from good to exceptional.
Blend until dreamy:
Take your time with the blending, making sure to catch all the bits hiding at the bottom. The color should transform into a beautiful, consistent green that looks almost too pretty to eat.
Season with intention:
Add your seasonings gradually, tasting as you go. The lemon juice especially needs a moment to meld with the other flavors before you can judge the final result.
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Last winter, my neighbor knocked on my door during a power outage, looking worried about her frozen food thawing. We ended up heating this soup on her camping stove, eating by candlelight while sharing stories about childhood comfort foods. Something about the warm bowls in our hands and the velvety green soup made what could have been a stressful evening feel almost magical, proving again that food has this remarkable ability to transform moments.

Storage and Make-Ahead Tips

This soup develops an even deeper flavor profile after a day in the refrigerator, making it perfect for meal prep. I often make a double batch on Sunday afternoons, portioning it into mason jars for grab-and-go lunches throughout the week. The soup keeps beautifully for up to four days refrigerated, though the vibrant green color might darken slightly after the second day.

Serving Suggestions

While perfect on its own, this soup reaches new heights when paired thoughtfully. I discovered by accident that a sprinkle of toasted pepitas adds this wonderful textural contrast to each spoonful. For a more substantial meal, a slice of grainy sourdough bread or a small scoop of cooked quinoa in the center of the bowl turns this into dinner-worthy fare that still feels light and energizing.

Customization Ideas

This recipe welcomes adaptation based on what your body craves or what your garden decides to produce in abundance. One memorable summer variation happened when I substituted half the broccoli with zucchini from my overzealous garden plants, creating a slightly sweeter version that my children actually preferred.

  • For extra immune support, stir in a tablespoon of white miso paste just before serving, being careful not to boil it after adding.
  • Replace half the cashews with avocado for an omega-rich variation that adds a different kind of creaminess.
  • If you enjoy heat, a small jalapeño sautéed with the onions adds a gentle warmth that helps clear sinuses during cold season.
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Creamy Big Green Immunity-Boosting Vegetable Soup in a rustic bowl, topped with fresh spinach leaves and a lemon wedge for a bright finish. Save to Pinterest
Creamy Big Green Immunity-Boosting Vegetable Soup in a rustic bowl, topped with fresh spinach leaves and a lemon wedge for a bright finish. | spoonmargin.com

This green elixir has become my kitchen equivalent of a warm hug or a gentle reassurance that everything will be alright. Whether youre fighting off seasonal sniffles or simply craving something genuinely nourishing, I hope it brings the same sense of well-being to your table that it has consistently brought to mine.

Recipe FAQs

Why soak cashews before blending?

Soaking cashews for 15 minutes softens them, ensuring a perfectly smooth and creamy texture when blended into the soup.

Can I make this soup nut-free?

Yes, replace the cashews with unsweetened coconut milk or silken tofu for a nut-free alternative that still provides creaminess.

How long does this soup keep in the refrigerator?

Store cooled soup in an airtight container for up to 4 days. Reheat gently on the stovetop, adding a splash of water or broth if needed.

Can I freeze this green soup?

Yes, freeze in portions for up to 3 months. Thaw overnight in the refrigerator and reheat slowly, stirring well to restore consistency.

What gives this soup its bright green color?

The combination of spinach, asparagus, and broccoli creates the vibrant hue. Blending while warm helps preserve the color.

Is this soup suitable for meal prep?

Absolutely. The flavors deepen over time, making it ideal for batch cooking. Prepare on Sunday for quick lunches throughout the week.

Green Immunity-Boosting Vegetable Soup

Silky smooth green soup with spinach, broccoli, asparagus and cashews for a nutritious immune boost.

Prep Time
15 min
Time to Cook
25 min
Overall Time
40 min
Recipe by Zoe Murphy


Skill Level Easy

Cuisine International

Makes 4 Portions

Dietary Notes Vegan-Friendly, No Dairy, No Gluten

What You'll Need

Vegetables

01 1 tablespoon olive oil
02 1 medium onion, chopped
03 2 garlic cloves, minced
04 1 leek, white and light green parts, sliced
05 1 medium head broccoli, cut into florets (approximately 10.5 ounces)
06 1 bunch asparagus, trimmed and cut into 2-inch pieces (approximately 8.8 ounces)
07 5.3 ounces baby spinach

Nuts and Dairy-Free Creaminess

01 2.8 ounces raw cashews, soaked in hot water for 15 minutes, then drained

Liquids

01 33.8 fluid ounces low-sodium vegetable broth
02 8.5 fluid ounces water, plus more as needed

Seasonings

01 1 teaspoon sea salt, or to taste
02 0.5 teaspoon ground black pepper
03 0.25 teaspoon ground nutmeg, optional
04 Juice of 0.5 lemon

How to Make It

Step 01

Sauté Aromatic Base: Heat olive oil in a large pot over medium heat. Add chopped onion, minced garlic, and sliced leek; sauté for 4 to 5 minutes until softened and fragrant.

Step 02

Add Cruciferous Vegetables: Add broccoli florets and asparagus pieces to the pot; cook for another 3 minutes, stirring occasionally.

Step 03

Build Soup Base: Pour vegetable broth and water into the pot. Bring to a boil, then reduce heat and simmer for 10 minutes until vegetables are just tender.

Step 04

Incorporate Greens and Creaminess: Add baby spinach and drained soaked cashews to the pot. Simmer for 2 to 3 minutes until spinach is completely wilted.

Step 05

Blend Soup: Remove from heat. Using an immersion blender, blend the soup until completely smooth and creamy. Alternatively, work in batches using a countertop blender, ensuring careful handling of hot liquid.

Step 06

Season and Finish: Stir in sea salt, black pepper, nutmeg if desired, and lemon juice. Taste and adjust seasoning as needed.

Step 07

Adjust Consistency: If soup is too thick, add additional water or broth in small increments to reach desired consistency.

Step 08

Serve: Ladle soup into bowls and serve hot. Garnish with a drizzle of olive oil or fresh lemon if desired.

Tools Needed

  • Large soup pot
  • Chef's knife
  • Cutting board
  • Immersion blender or countertop blender
  • Ladle

Allergy Details

Check ingredients for allergens, and ask your doctor if you’re unsure.
  • Contains tree nuts, specifically cashews
  • May contain gluten if vegetable broth contains wheat derivatives; verify labels for certification

Nutrition Details (per portion)

Provided for general reference—always check with your healthcare advisor.
  • Calorie Count: 210
  • Fat Content: 10 g
  • Carbohydrates: 24 g
  • Proteins: 8 g