This creamy fennel and yellow squash soup is a bright, comforting spring soup that is easy to make in one pot. A healthy fennel soup recipe that is gluten-free, dairy-free, paleo, Whole30 friendly, and perfect for weeknight dinners or a light and satisfying lunch.

Three bowls of creamy yellow squash soup topped with microgreens and red pepper flakes sit on a marble surface, with fresh dill and bread nearby. Text at the top reads, Creamy Fennel Yellow Squash Soup.

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Creamy Fennel Yellow Squash Soup

As a nutrition consultant and chef, I am always inspired by seasonal ingredients that bring both nourishment and beauty to the table. Spring is the time when I naturally start craving lighter meals, vibrant vegetables, and dishes that feel both comforting and fresh. One of my favorite ways to celebrate the season is by making light soups (because I love soups!) and this creamy fennel and yellow squash soup is perfect for an early spring soup.

I have been cooking with fennel for years, and I still get a little giddy every single time. Most people walk right past it at the grocery store, that pale green bulb with its feathery fronds waving like it has nothing to hide. They do not know what they are missing. Fennel is one of those ingredients that transforms completely when you apply heat. Raw, it is crisp and assertive, with that unmistakable anise flavor. Cooked low and slow? It becomes silky, sweet, and almost floral. It is the same vegetable, and it is a completely different experience.

I love fennel and cooking with fennel. Its delicate, slightly sweet flavor adds a unique touch to a dish. If you have never cooked with fennel before, this fennel soup recipe is the perfect place to start. Fennel has a gentle anise-like aroma that becomes softer and sweeter when cooked. It melts beautifully into soups, adding depth and elegance without overpowering the other ingredients. More fennel recipes here.

This spring dish has quickly become one of my favorite recipes for weeknight dinners and also a perfect lunch recipe when I want something satisfying but still light and nourishing.

Colorful bell peppers, squash, fennel, onion, herbs, honey, minced garlic, lemon, olive oil, broth, and red pepper flakes arranged on a marble surface, viewed from above.

Ingredients for Creamy Fennel Yellow Squash Soup

Fennel: Fennel is the star of this fennel soup recipe. It adds depth to the soup while keeping it light and fresh. The subtle anise flavor makes the soup taste unique and sophisticated.
Yellow squash: It makes the soup creamy and light without dairy. I like using yellow squash in spring soups because it cooks quickly and adds a gentle sweetness that balances the fennel perfectly.
Onion: Provides the aromatic base and enhances flavor. As it cooks, it adds natural sweetness and richness. I always start soups like this by sautéing the onion because it lays the foundation for the flavor.
Bell peppers: Bell peppers bring a vibrant color and mild sweetness. I like using yellow or orange bell peppers because they enhance the beautiful color of the soup and contribute to its naturally sweet and bright flavor.
Garlic: Garlic adds warmth and depth.
Vegetable broth: Vegetable broth brings everything together and allows the vegetables to slowly soften and release their flavors. A good broth makes a big difference in soups like this because it supports all the other ingredients.
Thyme: Thyme adds a subtle herbal note that pairs beautifully with fennel. Its earthy flavor balances the sweetness of the squash and peppers.
Dill: Dill and fennel are a wonderful combination. Dill adds brightness and a slightly fresh herbal flavor, lifting the entire dish and making the soup feel like a true spring dish.

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Did you know?

Fennel has been used since ancient times
Fennel isn’t just a pretty vegetable. It has a long history going back to ancient Greece and Rome, where it was associated with strength and longevity. Gladiators were said to eat fennel to stay strong… so basically, this soup is giving quiet warrior energy.

A white ceramic mug filled with creamy yellow soup, garnished with microgreens, red pepper flakes, and a gold spoon. The mug sits on a light marble surface with blurred herbs in the background.

How to Make Creamy Fennel Yellow Squash Soup

Sauté chopped onion in a Dutch oven until it becomes soft and fragrant.
Add garlic and cook briefly until aromatic.
Add chopped thyme and cook it for another 2 minutes.
Add chopped fennel, bell peppers, poblano pepper, and yellow squash with a chef’s knife. Let the vegetables cook for a few minutes so they begin to soften and release their natural sweetness.
Pour in vegetable broth and add thyme. Bring everything to a gentle simmer and cook until the vegetables become very tender, about 25 minutes.
Add dill before you finish cooking the soup.
Once the vegetables are soft, blend the soup until smooth and creamy. I love using an immersion blender directly in the pot because it keeps things simple. Or you can use a high-speed blender.
Finish the soup with honey, salt, black pepper, and a pinch of salt and pepper to taste, plus fresh dill. The result is a silky, comforting soup with a beautiful golden color that looks stunning on the table.

Ingredient Substitutions

Onion: Leeks can work beautifully in place of onions, adding a slightly sweeter flavor to the soup. It is a perfect spring vegetable that adds lots of depth to the soup.
Thyme: oregano or marjoram can be used if thyme is unavailable
Dill: Fresh parsley or chives can provide a similar fresh finish
Garlic: Shallots can add a softer aromatic flavor if garlic is not preferred
Vegetable broth: Bone broth or chicken broth can be used if you are not following a plant-based approach.

Chef Angie’s Tips

Choose fennel bulbs that are firm, white, fragrant and fresh
Do not discard fennel fronds; they make a beautiful garnish
You can roast the vegetables before simmering, which can add deeper flavor

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Three mugs of yellow soup garnished with herbs, surrounded by slices of bread, fresh dill, a bowl of yellow pickles, red pepper flakes, two spoons, and a pot of soup on a marble surface.

Ways To Serve

Serve with a drizzle of good olive oil with gluten-free sourdough, artisan gluten-free bread or sandwich bread
Top with cashew cream sauce
Pair with a crisp spring salad for a perfect lunch recipe
Serve alongside roasted vegetables for a complete spring meal, add toasted seeds or nuts for texture

Storage

Store leftovers in an airtight container in the refrigerator for up to four days. This soup reheats beautifully on the stovetop over low heat it can also be frozen for up to three months. If freezing, let the soup cool completely before storing.

FAQ

What does fennel taste like in soup?

Fennel has a delicate flavor that is slightly sweet with a gentle anise aroma. When cooked in soup, it becomes soft and mellow, blending beautifully with other vegetables.

Is this soup healthy?

Yes, this soup is made with whole vegetables and simple ingredients. It is gluten-free, dairy-free, paleo, and Whole30 friendly, making it a nourishing and balanced meal.

Can I make this soup ahead of time?

Absolutely. This soup actually tastes even better the next day because the flavors continue to develop.

Is this soup filling enough for a meal?

Yes, it is surprisingly satisfying. The blended vegetables create a creamy texture that makes the soup comforting and filling.

Three bowls of yellow soup garnished with microgreens sit on a marble surface, surrounded by slices of toasted bread, yellow diced vegetables, herbs, red pepper flakes, spoons, and a bowl of seeds.

If you try this creamy fennel and yellow squash soup, I would love to hear how it turned out for you. Share the recipe with friends who love healthy comfort food, and pin it to your favorite spring soup board so you can make it again during the season. Recipes like this remind me that simple seasonal ingredients can create the most beautiful and satisfying meals.

Creamy Fennel Yellow Squash Soup

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Prep Time 10

Cook Time 25

Total Time 35

Course Soup

Cuisine European

Servings

Calories 79 kcal

Equipment

Ingredients

3 Fennels chopped
2 Leek chopped
1 Onion chopped
3 Yellow squash chopped
1 Yellow bell pepper chopped
1 Orange green pepper chopped
1 Red bell pepper chopped
1 Pablano pepper chopped
2 tbsp Garlic minced
2 oz Tarragon fresh
64 oz Vegetable broth
2 tbsp Thyme chopped
3/4 cup Sourcream optional
1/2 Lemon
3 tbsp Lemon juice
Salt and black pepper to taste

Instructions

Sauté chopped onion in a Dutch oven until it becomes soft and fragrant.
2. Add minced garlic and cook briefly until aromatic.
3. Add chopped thyme and cook it for another 2 minutes.
4. Add chopped fennel, bell peppers, poblano pepper, and yellow squash with a chef's knife. Let the vegetables cook for a few minutes so they begin to soften and release their natural sweetness.
5. Pour in vegetable broth and add thyme and lemon. Bring everything to a gentle simmer and cook until the vegetables become very tender, about 25 minutes.
5. Add dill before you finish cooking the soup.
6. Once the vegetables are soft, add lemon juice, salt and pepper. You can add sour cream now if you are using it.
7. Blend the soup until smooth and creamy. I love using an immersion blender directly in the pot because it keeps things simple. Or you can use a high-speed blender.
8. Finish the soup with salt, black pepper, and a pinch of salt and pepper to taste, plus fresh dill.

Nutrition

Calories: 79kcalCarbohydrates: 17gProtein: 4gFat: 1gSaturated Fat: 0.2gPolyunsaturated Fat: 0.4gMonounsaturated Fat: 0.1gSodium: 920mgPotassium: 563mgFiber: 3gSugar: 6gVitamin A: 1880IUVitamin C: 75mgCalcium: 124mgIron: 4mg

Keyword Creamy fennel yellow saqush soup

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Creamy Fennel Yellow Squash Soup

Creamy Fennel Yellow Squash Soup