Name: Indulgent Flank Steak and Mushroom Soup with Sour Cream
Prep time: 10 min
Cook time: 30 min
Total time: 40 min
Ingredients: 1 pound Flank steak (a flavorful cut); 8 ounces Baby bella or cremini mushrooms (rich, earthy flavor); 1 medium Yellow onion (diced); 2 cloves Garlic (minced); 4 cups Beef broth; 1 cup Heavy cream (for creamy texture); 1 cup Sour cream (for serving); 1 head Green cabbage (thinly sliced); 2 tablespoons Butter (for sautéing); 1 teaspoon Salt (to taste); 1 teaspoon Black pepper (to taste); 2 tablespoons Chopped fresh parsley (for topping)

As the aroma of sizzling flank steak fills my kitchen, I’m instantly transported to a cozy little bistro tucked away in my favorite neighborhood. This Flank Steak and Mushroom Soup with Sour Cream and Cabbage Noodles recipe is just the comfort food I crave—rich, hearty, and surprisingly quick to whip up on a busy weeknight. With tender slices of steak mingling with earthy mushrooms and creamy broth, it’s an easy home-cooked meal that will impress your loved ones and feel like a warm hug in a bowl. Plus, with the addition of sautéed cabbage noodles, you get a fun twist on traditional pasta that keeps things fresh and vibrant. Ready to dive into this delightful dish that's sure to become a weeknight favorite? Let’s make some magic happen in the kitchen!

Why is this soup so comforting?

Heartwarming depth: Each bowl offers a rich blend of flavors, from the seared flank steak to the savory mushrooms, making it an unforgettable experience.
Quick and easy: With just 40 minutes to create this masterpiece, it fits perfectly into your busy schedule.
Unique twist: Instead of traditional noodles, sautéed cabbage adds a fresh, crunchy texture that elevates the dish.
Crowd-pleaser: This recipe is guaranteed to impress your family or guests, bringing everyone together for a cozy meal.
Creamy indulgence: The combination of sour cream and heavy cream creates a velvety broth that wraps you in warmth.
Ditch fast food and savor homemade goodness that feels like a hug in a bowl!

Flank Steak and Mushroom Soup Ingredients

• Dive into the deliciousness of Flank Steak and Mushroom Soup with Sour Cream and Cabbage Noodles.

For the Soup

Flank steak – a flavorful cut that becomes incredibly tender when seared and simmered.
Baby bella or cremini mushrooms – their rich, earthy flavor enhances the soup’s depth.
Yellow onion – brings a sweet aroma when sautéed, adding a nice balance to the dish.
Garlic – the subtle spice of garlic elevates the flavor profile beautifully.
Beef broth – provides the soup with a hearty, satisfying foundation.
Heavy cream – lends a luscious, creamy texture that makes each spoonful divine.
Sour cream – adds tang and creaminess, making each bowl a comforting delight.

For the Cabbage Noodles

Green cabbage – a delightful alternative to pasta, offering crunch and nutrients.
Butter – for sautéing the cabbage, adding richness and flavor to the dish.
Salt – enhances all the flavors, making them pop in this warming soup.
Black pepper – adds just the right amount of spice to awaken your taste buds.

For Garnish

Chopped fresh parsley – a pop of color and freshness that brightens each bowl.

Get ready to embrace the rich flavors of this Flank Steak and Mushroom Soup with Sour Cream and Cabbage Noodles!

Step‑by‑Step Instructions for Flank Steak and Mushroom Soup with Sour Cream and Cabbage Noodles

Step 1: Sear the Steak
Heat a large skillet or Dutch oven over medium-high heat. While the skillet warms, season the pound of flank steak generously with salt and black pepper. Place the steak in the hot skillet, searing each side for about 3 minutes until a golden-brown crust forms. Once done, remove the steak and let it rest briefly before slicing it thinly against the grain.

Step 2: Sauté the Aromatics
In the same skillet, reduce the heat to medium and melt 2 tablespoons of butter. Add the diced yellow onion and sliced mushrooms, cooking for 7–9 minutes until the onion becomes translucent and the mushrooms are golden and soft. Stir in the minced garlic, cooking for an additional minute until fragrant, perfectly complementing the upcoming flavors in your Flank Steak and Mushroom Soup.

Step 3: Create the Soup Base
Pour 4 cups of beef broth into the skillet with the sautéed vegetables and bring the mixture to a gentle simmer over medium heat. Stir in 1 cup of heavy cream, allowing everything to meld together beautifully. Let this simmer for 10–12 minutes, stirring occasionally, until the soup thickens slightly and the flavors deepen, creating a cozy base for your soup.

Step 4: Prepare the Cabbage Noodles
While the soup simmers, take a separate pan and add 2 tablespoons of butter over medium heat. Toss in the thinly sliced green cabbage and sauté for 6–8 minutes until it becomes soft and lightly browned. Season with a pinch of salt and black pepper to elevate the flavors, turning this fresh cabbage into delightful noodles that add depth to your Flank Steak and Mushroom Soup.

Step 5: Finish the Soup
Return the sliced flank steak to the simmering soup, stirring gently to combine. Allow the steak to warm through for 2–3 minutes until everything is heated evenly and the wonderful aromas fill your kitchen. This quick step ensures the steak remains tender while soaking up the delicious broth, creating a hearty contrast in every spoonful.

Step 6: Serve and Garnish
Ladle the savory soup into bowls, ensuring each serving gets a generous portion of steak and mushrooms. Top each bowl with a dollop of sour cream, a scoop of sautéed cabbage noodles, and a sprinkle of chopped fresh parsley for a vibrant finish. Serve hot to relish in the comforting flavors of your Flank Steak and Mushroom Soup with Sour Cream and Cabbage Noodles, inviting everyone to gather around.

Expert Tips for Flank Steak and Mushroom Soup

Sear Properly: Make sure your skillet is hot enough before adding the flank steak; this creates a nice crust and prevents sticking.
Slice against the grain: After cooking, slice the steak against the grain for maximum tenderness; this ensures each bite is juicy and easy to chew.
Don’t rush the simmer: Allow the soup to simmer a bit longer if needed; this helps all the flavors meld beautifully in your Flank Steak and Mushroom Soup with Sour Cream and Cabbage Noodles.
Fresh ingredients: Opt for fresh, high-quality mushrooms and cabbage to enhance the soup’s flavor and texture significantly.
Adjust creaminess: Feel free to adjust the amount of heavy cream to suit your taste; just remember it adds to the soup’s comforting richness.
Garnish generously: Don’t skimp on the sour cream and parsley garnish; they elevate the dish visually and add fresh, tangy notes to the soup.

Make Ahead Options

This Flank Steak and Mushroom Soup with Sour Cream and Cabbage Noodles is fantastic for meal prep! You can sear and slice the flank steak up to 24 hours in advance, storing it in an airtight container in the refrigerator to maintain its tenderness. Additionally, the mushroom and onion mixture can be prepared ahead of time and refrigerated for up to 3 days, just reheat gently before adding the beef broth and cream to prevent overcooking the vegetables. When you're ready to serve, simply combine the components, simmer for about 10 minutes, and add the sautéed cabbage noodles. This way, you’ll have a comforting, delicious meal ready with minimal effort on hectic weeknights!

Flank Steak and Mushroom Soup Variations

Feel free to play around and make this Flank Steak and Mushroom Soup truly yours! Each swap or twist adds a new dimension of flavor and fun.

Dairy-Free: Substitute heavy cream and sour cream with coconut milk and cashew cream for a creamy, vegan alternative.
Spicy Kick: Add 1–2 teaspoons of chili flakes or diced jalapeños to the sautéed vegetables for a delightful heat that brightens the soup.
Mushroom Medley: Experiment with different mushrooms, like shiitake or oyster, to introduce new textures and flavors to your soup.
Vegetarian Twist: Replace flank steak with hearty lentils or chickpeas for a protein-packed vegetarian version that’s still satisfying.
Herb Infusion: Enhance the flavor by adding fresh thyme or rosemary to the soup, creating a fragrant herbaceous note that dances on your palate.
Umami Boost: Stir in a tablespoon of soy sauce or Worcestershire sauce for an extra layer of savory goodness that elevates the entire dish.
Nutty Crunch: Top your soup with toasted pumpkin seeds or slivered almonds for an added crunch that contrasts beautifully with the creamy broth.
Cabbage Substitution: Swap out cabbage for spiralized zucchini or squash for a light, low-carb alternative that keeps things fresh and vibrant.

Discover the joy of customizing this Flank Steak and Mushroom Soup, making it a delightful centerpiece for your next family gathering!

How to Store and Freeze Flank Steak and Mushroom Soup

Fridge: Store any leftover Flank Steak and Mushroom Soup in an airtight container in the fridge for up to 3 days to maintain freshness and flavor.

Freezer: If you wish to keep it longer, freeze the soup in freezer-safe containers for up to 3 months. Leave a little space at the top for expansion.

Reheating: When ready to enjoy, thaw it overnight in the fridge, then reheat on the stovetop over medium heat until warmed through. Avoid boiling to keep the creaminess intact.

Garnish Freshly: Add fresh sour cream and parsley just before serving to restore the vibrant flavors and presentation of your Flank Steak and Mushroom Soup.

What to Serve With Flank Steak and Mushroom Soup with Sour Cream and Cabbage Noodles

As you savor this delightful soup, consider these complementary dishes that will create a cozy and satisfying meal experience.

Crusty Bread: The perfect vessel for soaking up the creamy broth, offering a satisfying crunch and warmth.
Zesty Salad: A crisp cucumber and tomato salad brightens the meal with fresh flavors that cut through the richness of the soup.
Roasted Vegetables: The earthy sweetness of roasted carrots, radishes, and Brussels sprouts pairs beautifully with the deep flavors of the soup.
Garlic Parmesan Knots: These fluffy, buttery knots bring a garlicky bliss to your table, perfect for dipping and enjoying every last drop.
Mashed Potatoes: Creamy and buttery, they complement the robust flavors while providing a velvety texture that contrasts well.
Red Wine: A glass of full-bodied red wine enhances the richness of the broth and complements the tender steak perfectly.
Chocolate Cake: For dessert, a slice of rich chocolate cake adds a delightful sweetness to finish off the meal on a high note.
Herbed Rice: Light and fluffy rice infused with herbs helps balance the creamy broth, providing a wholesome touch.
Coleslaw: The crunch of a tangy coleslaw adds a refreshing element that contrasts the warm soup beautifully.

Flank Steak and Mushroom Soup with Sour Cream and Cabbage Noodles Recipe FAQs

How do I choose the perfect flank steak?
Absolutely! When selecting flank steak, look for a cut that is bright red with minimal dark spots. The meat should have a bit of marbling, which adds flavor and tenderness. A well-trimmed piece with even thickness ensures that it cooks uniformly. If you can, feel free to ask your butcher for recommendations based on freshness!

What’s the best way to store leftovers?
Very easy! Transfer any leftover Flank Steak and Mushroom Soup to an airtight container and refrigerate it. It will stay fresh for about 3 days. Just make sure to let it cool down before sealing the container for optimal flavor retention. Enjoy every last drop of this creamy goodness!

Can I freeze this soup?
Absolutely! To freeze your Flank Steak and Mushroom Soup, pour it into freezer-safe containers, leaving about an inch of space at the top for expansion. It can be frozen for up to 3 months. When you're ready to enjoy it again, thaw it overnight in the fridge, and reheat gently on the stovetop. Stir well to restore the creamy texture, and don’t forget to re-add your fresh garnishes!

What if my soup is too thick?
No problem at all! If the soup has become too thick for your liking, simply add a little beef broth or water to reach your desired consistency. Warm it gently over medium heat, stirring continuously for about 2-3 minutes, until it’s just right. A perfect balance ensures every bowl is filled with that comforting, soupy goodness.

Is this soup pet-friendly?
Great question! This Flank Steak and Mushroom Soup contains ingredients that aren’t recommended for pets, especially the sour cream and seasonings. It’s best to keep this delicious dish for human enjoyment only. If you want to share the joy with your furry friend, consider offering plain, cooked flank steak as a treat!

Can I substitute ingredients for dietary restrictions?
Very much so! If you have dietary restrictions or allergies, there are many alternatives. For a lighter option, you can use Greek yogurt instead of sour cream for a tangy twist. If you're avoiding dairy, try using coconut cream for a similar rich texture. Additionally, swapping out heavy cream with a dairy-free alternative can still yield a deliciously creamy soup. Enjoy experimenting!