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There’s a certain comfort that comes with a steaming bowl of soup, especially when it’s creamy and rich without the dairy. I discovered this delightful recipe for a 5-Ingredient Creamy Vegan Mushroom Soup during a rainy afternoon when I craved something warm and satisfying. With just five humble ingredients—cremini mushrooms, onions, rolled oats, vegetable broth, and soy sauce—I realized that you don’t need a lengthy list to create a dish that’s both flavorful and nourishing.

As the aromatic blend of sautéed mushrooms and onions filled my kitchen, I knew I was onto something special. This soup not only comes together in a snap, making it a perfect choice for weeknight dinners, but it also delivers the kind of umami-packed, comforting goodness that shines on chilly days or when you want to treat yourself without the fuss. So grab your pot and let’s whip up a bowl of this plant-based delight that’s sure to impress even the pickiest of eaters!

Why You’ll Love This 5-Ingredient Creamy Mushroom Soup

Simplicity at its best: With just five easy ingredients, you’ll whip up a delicious meal in no time.
Rich umami flavor: The combination of cremini mushrooms and soy sauce creates a savory depth that delights the palate.
Comfort in every bowl: Its creamy texture, achieved with rolled oats, offers a satisfying experience that’s reminiscent of traditional soups without the dairy.
Versatile and adaptable: Feel free to customize it with your favorite veggies or herbs to suit your taste.
Perfect for any occasion: Ideal for cozy weeknight dinners or lunches, this soup is bound to impress friends and family alike. Enjoy it with a side of crusty bread for a complete meal!

5-Ingredient Creamy Mushroom Soup Ingredients

For the Soup

Cremini Mushrooms – Provide rich umami flavor and texture; substitute with button mushrooms for a milder taste.
Onion – Adds sweetness and depth; can be exchanged with shallots for a more nuanced flavor.
Old-Fashioned Rolled Oats – Creates a creamy texture without dairy; you can use instant oats, but the texture will differ slightly.
Soy Sauce – Enhances umami and adds saltiness; use tamari for a gluten-free variation.
Vegetable Broth – Serves as the soup’s flavorful base; homemade or low-sodium store-bought options are best for managing salt levels.

For Sautéing/Seasoning

Olive Oil – Essential for sautéing the mushrooms and onions; swap with any neutral oil if preferred.
Salt & Pepper – Key for seasoning; adjust to taste as you cook for the perfect flavor balance.

This delicious 5-Ingredient Creamy Mushroom Soup is sure to be a hit at your dinner table!

How to Make 5-Ingredient Creamy Mushroom Soup

Heat Oil: In a heavy-bottomed pot, ideally a Dutch oven, heat a splash of olive oil over medium heat. This sets the stage for a deliciously sautéed base that enhances all the flavors.
Sauté Onions and Mushrooms: Add diced onions and sliced cremini mushrooms to the pot along with a pinch of salt. Cook for about 10 minutes until they are softened and fragrant, stirring occasionally for even cooking.
Simmer with Broth: Pour in vegetable broth, and toss in the rolled oats and soy sauce. Stir gently, then bring everything to a simmer. Allow it to bubble away for around 30 minutes, giving the flavors time to meld beautifully.
Blend Until Smooth: Using an immersion blender, carefully puree the soup in the pot until silky-smooth. Alternatively, transfer to a standard blender, ensuring steam can escape, and blend until creamy.
Serve Hot: Ladle the soup into bowls, garnishing with fresh herbs or a sprinkle of black pepper, if desired. Serve warm and enjoy the cozy goodness!

Optional: Top with a drizzle of olive oil for added richness.

Exact quantities are listed in the recipe card below.

How to Store and Freeze 5-Ingredient Creamy Mushroom Soup

Fridge: Store any leftovers in an airtight container for up to 4 days, ensuring the soup stays fresh and flavorful for your next cozy meal.
Freezer: For long-term storage, freeze the soup in portions in freezer-safe containers for up to 3 months. Be sure to leave space at the top for expansion.
Reheating: Thaw frozen soup in the refrigerator overnight, then reheat gently on the stovetop over low heat, stirring frequently until warmed through.
Airtight Tips: Always use airtight containers to prevent freezer burn, ensuring that your 5-Ingredient Creamy Mushroom Soup retains its delicious taste.

Variations & Substitutions for Creamy Vegan Mushroom Soup

Feel free to get creative with this soup! Here are some delightful options to customize your creamy bowl of goodness.

Green Boost: Add chopped spinach or kale for a nutritious punch. Stir them in during the last few minutes of cooking for vibrant freshness.
Herb Appeal: Toss in fresh herbs like thyme or parsley just before serving. This adds a lovely aroma and brightens up the flavors wonderfully.
Spicy Kick: For those who crave heat, sprinkle in red pepper flakes or a dash of hot sauce while cooking. Adjust the amount to suit your spice preference!
Save on Time: Use pre-sliced mushrooms or a mix of frozen vegetables if you’re short on prep time. They’ll cook down beautifully in the soup!
Nutty Flavor: Swap rolled oats for cashews if you prefer a creamier texture with a hint of nuttiness. Simply soak and blend with the soup for a rich twist.
Creamy Contrast: Add coconut milk for a tropical flavor and extra creaminess. Stir it in right after blending to keep that luscious texture intact.
Mushroom Variety: Experiment with shiitake or portobello mushrooms for deeper, complex flavors. Each type brings its unique character to the soup.
Zesty Touch: Squeeze in a bit of lemon juice or add some zest for a bright finish. This can bring balance to the rich, earthy flavors!

Let your imagination run wild as you make this soup truly your own!

What to Serve with 5-Ingredient Creamy Mushroom Soup?

This delightful soup sets the perfect stage for a warm and satisfying meal that comforts the soul.

Crusty Baguette: Perfect for dipping, its chewy texture balances the creamy soup, adding a delightful contrast with every bite. Serve with a pat of vegan butter for extra richness.
Simple Green Salad: A fresh and vibrant mix of greens, tossed with a light vinaigrette, provides a crisp texture that complements the velvety soup beautifully. Add cherry tomatoes for a pop of color and flavor.
Roasted Garlic Bread: The aromatic, buttery notes of roasted garlic bread create an indulgent choice to pair with the soup. Each bite brings a savory richness that enhances the meal experience.
Vegan Grilled Cheese: A crispy, melty twist on a classic favorite, vegan grilled cheese sandwiches offer a delightful crunch while complementing the soup’s creamy consistency. A combination of nutritional yeast and plant-based cheese creates a rich flavor.
Stuffed Puff Pastry: Flaky puff pastry filled with sautéed spinach and herbs makes for a gourmet touch that elevates your meal. The contrasting textures delight the palate and keep it interesting.
Herbal Iced Tea: A refreshing drink choice that’s light and herbal can cleanse the palate and balance the richness of the soup. Choose caffeine-free options, such as mint or chamomile, for a soothing experience.
Chocolate Avocado Mousse: End your meal on a sweet note with this decadent dessert. Its silky texture and rich dark chocolate flavor provide a luxe finish, making it the perfect conclusion to your cozy night in.

Expert Tips for Making Creamy Mushroom Soup

Perfect Oat Addition: Ensure you add the old-fashioned rolled oats while simmering; they help create that creamy texture without dairy.
Blending Ease: Use an immersion blender for quick blending directly in the pot, minimizing clean-up and hassle.
Steam Safety: If using a standard blender, allow steam to escape as you blend to prevent pressure build-up and potential spills.
Mushroom Choices: While cremini mushrooms are ideal for flavor, feel free to substitute with button mushrooms if you prefer a milder taste in your soup.
Seasoning Balance: Adjust salt and pepper as the ingredients cook—this ensures your soup is flavorful without being overpowering.
Flavor Variations: Consider stirring in fresh herbs or other vegetables towards the end for added nutrition and freshness in your 5-Ingredient Creamy Mushroom Soup.

Make Ahead Options

This 5-Ingredient Creamy Mushroom Soup is perfect for meal prep, allowing you to savor delicious homemade flavors on busy nights! You can sauté the onions and mushrooms up to 24 hours in advance, storing them in an airtight container in the refrigerator. When you’re ready to enjoy, simply reheat the sautéed mixture in your pot, add the vegetable broth, rolled oats, and soy sauce, then simmer as directed for about 30 minutes. This method not only saves time but also ensures the soup retains its creamy texture. For quality maintenance, allow the soup to cool completely before refrigerating, making it just as delightful after being prepped ahead!

5-Ingredient Creamy Mushroom Soup Recipe FAQs

What are the best mushrooms to use for this soup?
Cremini mushrooms are fantastic for their rich umami flavor, but feel free to swap them for button mushrooms if you prefer a milder taste. Button mushrooms will still yield a delicious soup, just with a subtly different flavor profile.

How should I store leftovers?
Absolutely! You can store any leftover soup in an airtight container in the refrigerator for up to 4 days. Make sure it’s cooled down before sealing it so it stays fresh and ready for your next cozy meal!

Can I freeze this soup?
Definitely! For long-term storage, you can freeze the soup in portions using freezer-safe containers for up to 3 months. Be sure to leave some space at the top of the containers, as the soup will expand as it freezes.

What if my soup is too thick after blending?
If you find your 5-Ingredient Creamy Mushroom Soup is thicker than you’d like, just stir in a bit of vegetable broth or water until you achieve your desired consistency. Blend again for a smooth texture after adding liquid, and adjust the seasoning as necessary.

Can I make this soup gluten-free?
Very! To make this creamy mushroom soup gluten-free, simply use tamari instead of soy sauce, ensuring everything is free of gluten. The rest of the ingredients are naturally gluten-free, so you’re good to go!

Is this soup suitable for pets?
While the ingredients in the 5-Ingredient Creamy Mushroom Soup are generally safe for pets, it’s best to avoid feeding them any soup made with onions as they can be toxic to dogs and cats. Always check with your veterinarian if you’re uncertain about any specific ingredients!