Transform leftover steak into a hearty, comforting soup with the help of your slow cooker. This recipe is perfect for those looking to reduce food waste and enjoy a delicious, home-cooked meal. With its rich, beefy flavor and tender vegetables, this leftover steak soup is sure to become a family favorite. Let's dive into the recipe and explore some tips to make the most of your leftovers.
Ingredients
- 1 lb leftover steak, sliced
- 1 onion, diced
- 2 carrots, sliced
- 2 celery stalks, sliced
- 3 cloves garlic, minced
- 4 cups beef broth
- 1 can (14.5 oz) diced tomatoes
- 1 tsp dried thyme
- 1 tsp dried rosemary
- Salt and pepper, to taste
- 2 cups water
- 1 cup uncooked egg noodles
- Fresh parsley, chopped (for garnish)
Instructions
To begin, place the leftover steak, onion, carrots, celery, garlic, beef broth, diced tomatoes, thyme, rosemary, salt, pepper, and water in your slow cooker. Stir to combine, ensuring the steak is evenly distributed.
Cover the slow cooker and cook on low for 6-8 hours or on high for 3-4 hours. This allows the flavors to meld together and the vegetables to soften.

About 30 minutes before serving, stir in the uncooked egg noodles. This ensures they don't become overcooked or mushy. Let the soup simmer in the slow cooker with the lid off to allow the noodles to cook through.
Once the noodles are tender, taste and adjust the seasoning if necessary. Ladle the soup into bowls, garnish with fresh parsley, and serve with crusty bread or dinner rolls.
Tips for the Best Leftover Steak Soup
Choose the right steak
For the best results, use leftover steak that has been cooked to your desired doneness. Steaks like ribeye, sirloin, or New York strip work well in this recipe. Avoid using steak that has been overcooked or dried out, as it may not rehydrate well in the soup.

Add potatoes for extra heartiness
If you'd like a heartier soup, add a cup of diced potatoes (such as Yukon Gold or russet) to the slow cooker along with the other vegetables. This will create a more filling and satisfying meal.
Make it a meal prep
This leftover steak soup is an excellent candidate for meal prepping. Simply cook the soup in your slow cooker, let it cool, and portion it into individual containers. Store the containers in the refrigerator for up to 5 days or in the freezer for up to 3 months. Reheat the soup in the microwave or on the stovetop when ready to serve.
Nutritional Information
| Calories | Total Fat | Saturated Fat | Cholesterol | Sodium | Total Carbohydrate | Dietary Fiber | Sugars | Protein |
|---|---|---|---|---|---|---|---|---|
| 370 | 11g | 4.5g | 65mg | 1220mg | 37g | 4g | 6g | 32g |
Nutritional information is approximate and based on a 2,000 calorie diet. The values may vary depending on the specific brands and types of ingredients used.























