Description
Rich, hearty, and surprisingly easy to make, this Easy Flank Steak and Mushroom Soup with Sour Cream and Cabbage Noodles delivers comfort in every spoonful. Juicy seared steak, umami-packed mushrooms, creamy broth, and buttery cabbage noodles come together in one irresistible bowl. It’s a quick dinner idea, perfect for low-carb food lovers, hearty soup recipes, or anyone searching for easy weeknight meals. Whether you’re meal-prepping or hosting, this recipe checks all the right boxes: flavorful, flexible, and ready in under an hour.
Ingredients
2 tablespoons olive oil
1 pound flank steak
Salt and black pepper, to taste
2 tablespoons butter
1 medium yellow onion, diced
3 cloves garlic, minced
8 ounces cremini mushrooms, sliced
4 cups beef broth (low sodium recommended)
1 cup heavy cream
1 small head green cabbage, thinly sliced
1/2 cup sour cream
2 tablespoons fresh parsley, chopped
Instructions
1. Pat the flank steak dry and season with salt and pepper.
2. Heat olive oil in a skillet over medium-high heat. Sear the steak for 3–4 minutes per side. Remove and let rest for 10 minutes before slicing thinly against the grain.
3. In a large pot, melt butter over medium heat. Add onion and cook until softened, about 5 minutes.
4. Stir in the garlic and cook for another 30 seconds.
5. Add mushrooms and sauté for 6–8 minutes until browned and tender.
6. Pour in the beef broth, scraping up any bits from the bottom. Simmer for 10–15 minutes.
7. Lower heat and stir in the heavy cream. Simmer gently for another 5 minutes.
8. In a separate pan, sauté cabbage in a bit of butter until soft and lightly golden, about 7–10 minutes.
9. Add sliced steak to the soup just before serving, letting it warm through without boiling.
10. To serve, place cabbage noodles in each bowl, ladle soup over the top, and garnish with sour cream and chopped parsley.
Notes
Always slice the steak *against the grain* to keep it tender and juicy.
Add the sour cream only after removing the soup from heat to avoid curdling.
For a thicker broth, simmer the soup uncovered for a few extra minutes or stir in a spoon of cream cheese.
- Prep Time: 10 minutes
- Cook Time: 35 minutes
- Category: Soup
- Method: Stovetop
- Cuisine: Comfort Food
Nutrition
- Serving Size: 1 bowl
- Calories: 420
- Sugar: 5g
- Sodium: 680mg
- Fat: 29g
- Saturated Fat: 13g
- Unsaturated Fat: 13g
- Trans Fat: 0g
- Carbohydrates: 11g
- Fiber: 3g
- Protein: 28g
- Cholesterol: 95mg
Keywords: easy dinner, soup with steak, low carb comfort food, hearty mushroom soup, cabbage noodles