Green Immunity-Boosting Vegetable Soup

Featured in: Seasonal Meal Ideas

This vibrant green soup combines the nutritional power of spinach, asparagus, and broccoli with creamy soaked cashews for a rich, velvety texture. Ready in just 40 minutes, this nourishing bowl delivers vitamins and antioxidants while remaining completely vegan and gluten-free. The blend of vegetables creates a naturally sweet and savory profile enhanced with aromatic garlic, onion, and warm nutmeg. Perfect for meal prep, this soup stores beautifully and tastes even better the next day.

Updated on Wed, 21 Jan 2026 09:43:00 GMT
Steaming bowl of creamy Big Green Immunity-Boosting Vegetable Soup with spinach and broccoli.  Pin it
Steaming bowl of creamy Big Green Immunity-Boosting Vegetable Soup with spinach and broccoli. | forkledger.com

There's something almost magical about watching a pot of scattered green vegetables transform into something silky and vibrant. I discovered this soup on an ordinary Tuesday when my fridge was overflowing with spring produce and I was determined not to waste a single floret. The first spoonful surprised me—rich, creamy, nothing like the watery vegetable soups I'd made before. That cashew trick changed everything.

I made this for my sister when she was recovering from a cold, and she texted me the next day asking for the recipe before she'd even finished the leftovers. There's something about serving someone a bowl of pure green goodness that feels like an act of care. She now makes it every other week.

Ingredients

  • Olive oil: Just a tablespoon to start—it's enough to coax out the sweetness from your onion and garlic without making the soup heavy.
  • Large onion and garlic cloves: These are your flavor foundation, the quiet backbone that makes everything taste intentional.
  • Broccoli, asparagus, and zucchini: The greens are where the magic lives, so don't skimp or use sad, sad wilted ones.
  • Baby spinach: Add it at the end so it stays bright green and doesn't turn gray during cooking.
  • Raw cashews: Soaked cashews blend into pure silk, creating creaminess that rivals anything made with heavy cream.
  • Vegetable broth: Low-sodium is key because you control the seasoning, not the broth.
  • Lemon juice: A tablespoon at the end wakes everything up and makes the green taste even greener.
  • Sea salt, black pepper, nutmeg, and thyme: These seasonings are subtle players that shouldn't announce themselves—just enhance.

Instructions

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Start with your aromatics:
Heat olive oil in a large pot and let your onion and garlic soften for a few minutes until the kitchen starts smelling like something good is happening. You'll know it's ready when the edges of the onion turn translucent.
Build your vegetable base:
Add the broccoli, asparagus, zucchini, and all your seasonings, stirring everything together so the spices coat each piece. Let it cook for a few minutes—you want the vegetables to start releasing their flavors.
Simmer until tender:
Pour in your vegetable broth and bring it to a gentle boil, then lower the heat and let it simmer covered for about 12 to 15 minutes. The vegetables should be soft enough to break apart with a wooden spoon.
Add the final greens and cashews:
Stir in your spinach and those soaked cashews, letting them cook together for just 2 minutes. The spinach will wilt and the cashews will start to soften further.
Blend into creaminess:
This is where patience matters—carefully transfer the soup in batches to your blender and blend until completely smooth, or use an immersion blender right in the pot for less cleanup. Work in batches if using a regular blender because hot soup can surprise you.
Season and serve:
Stir in your lemon juice, taste it, and adjust salt and pepper to your preference. Serve it hot, maybe with a whisper of extra olive oil on top.
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Vibrant green Big Green Immunity-Boosting Vegetable Soup served hot with crusty bread on the side. | forkledger.com

There was a moment last winter when I served this to friends on a cold evening and everyone went quiet mid-spoonful in that way that means something is working. Someone asked if it was restaurant quality, and I realized that sometimes the simplest recipes—just vegetables, care, and a blender—are the ones that matter most.

The Cashew Secret

For years I thought soup had to be either thin or rely on cream to feel luxurious. Then I learned about cashews, and it changed my understanding of texture. Raw cashews soaked in hot water become almost like butter when blended—they add richness and a slight sweetness that makes people swear there's cream in this soup even though there isn't a drop. If you're nut-free, sunflower seeds work beautifully too, though they bring a slightly nuttier, less buttery quality.

Making It Your Own

This soup is forgiving in the way that really good cooking should be. You can swap vegetables based on what's in season or what your farmer's market is offering—peas, green beans, or cauliflower all work. The principle stays the same: build flavor with aromatics, cook your vegetables until tender, add greens and cashews at the end, then blend until you have something silky. I've made this in spring with fresh asparagus, in summer with extra zucchini, and in early fall with greens from the garden.

Serving and Storage

This soup is best enjoyed the day you make it when the green is brightest and the flavor most vibrant, but it keeps beautifully in the fridge for up to four days. Reheat gently over medium heat, stirring often so it doesn't catch on the bottom. It also freezes well for up to three months—just thaw overnight in the fridge before reheating.

  • Pair it with crusty bread for something more substantial, or serve it as a starter before a light meal.
  • A swirl of olive oil, fresh herbs, or even a sprinkle of pumpkin seeds adds nice texture if you want it.
  • This soup is naturally vegan and gluten-free, making it perfect for gathering people with different needs around the same table.
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Ladle pouring creamy Big Green Immunity-Boosting Vegetable Soup garnished with fresh spinach leaves. Pin it
Ladle pouring creamy Big Green Immunity-Boosting Vegetable Soup garnished with fresh spinach leaves. | forkledger.com

This green soup reminds me that the best meals don't need to be complicated to feel nourishing. It's proof that simplicity and care can create something that tastes like medicine and comfort at the same time.

Recipe FAQ

Can I make this soup nut-free?

Yes, simply replace the cashews with soaked sunflower seeds or add a cooked potato for creaminess. Both alternatives create a smooth texture without nuts.

How long does this soup keep in the refrigerator?

Store in an airtight container for up to 5 days. The flavors develop beautifully over time, making it excellent for meal prep.

Can I freeze this green soup?

Absolutely. Freeze in portions for up to 3 months. Thaw overnight in the refrigerator and reheat gently, stirring occasionally.

What can I serve with this soup?

Crusty whole-grain bread, roasted chickpeas, or a simple side salad make excellent accompaniments. A crisp white wine like Sauvignon Blanc pairs wonderfully.

How do I get the smoothest texture?

Blend in batches using a high-speed blender or use an immersion blender directly in the pot. Blend for at least 2 minutes until completely silky.

Can I use frozen vegetables?

Frozen spinach and broccoli work well in this soup. Adjust cooking time slightly as frozen vegetables may cook faster than fresh.

Green Immunity-Boosting Vegetable Soup

Vibrant creamy soup with spinach, asparagus, broccoli, and cashews for a nourishing meal.

Prep time
15 minutes
Cook time
25 minutes
Total duration
40 minutes
Published by Natalie Hall


Skill level Easy

Cuisine International

Makes 4 Number of servings

Diet details Totally vegan, Dairy-free, Gluten-free

What You Need

Vegetables

01 1 tablespoon olive oil
02 1 large onion, chopped
03 2 garlic cloves, minced
04 1 medium head broccoli (about 10.6 ounces), cut into florets
05 1 bunch asparagus (about 8.8 ounces), trimmed and chopped
06 5.3 ounces baby spinach
07 1 medium zucchini, chopped

Creamy Base

01 3.5 ounces raw cashews, soaked in hot water for 20 minutes and drained
02 4.2 cups low-sodium vegetable broth
03 1 tablespoon lemon juice

Seasonings

01 1 teaspoon sea salt, or to taste
02 1/2 teaspoon ground black pepper
03 1/4 teaspoon ground nutmeg
04 1/2 teaspoon dried thyme, optional

How To Make It

Step 01

Sauté Aromatics: Heat olive oil in a large pot over medium heat. Add chopped onion and minced garlic; sauté for 3 to 4 minutes until softened and fragrant.

Step 02

Cook Vegetables: Add broccoli florets, asparagus, zucchini, sea salt, black pepper, nutmeg, and thyme. Stir to combine and cook for 4 to 5 minutes.

Step 03

Simmer Broth: Pour in vegetable broth and bring to a gentle boil. Reduce heat, cover, and simmer for 12 to 15 minutes until vegetables are tender.

Step 04

Wilt Spinach and Add Cashews: Add baby spinach and soaked cashews. Simmer for 2 more minutes until spinach is completely wilted.

Step 05

Blend Soup: Remove from heat. Carefully transfer the soup in batches to a blender or use an immersion blender, blending until completely smooth and creamy.

Step 06

Season and Finish: Stir in lemon juice, taste, and adjust seasoning as desired.

Step 07

Serve: Serve hot, garnished with extra spinach leaves or a drizzle of olive oil if desired.

Tools Needed

  • Large pot
  • Blender or immersion blender
  • Knife and cutting board
  • Ladle

Allergy info

Review each component for possible allergen content—ask a healthcare provider whenever you're unsure.
  • Contains tree nuts (cashews)
  • Substitute cashews with sunflower seeds for nut allergies
  • Always check labels on broth for hidden allergens

Nutrition info (per serving)

Nutritional details are for your reference. This doesn't substitute health advice.
  • Calories: 255
  • Total fat: 13 grams
  • Carbohydrates: 26 grams
  • Protein: 9 grams