This slow cooker beef mushroom barley soup is a hearty and comforting dish perfect for chilly days. The combination of tender beef, earthy mushrooms, and chewy barley creates a satisfying meal that will warm you from the inside out. With minimal prep and the convenience of a slow cooker, this recipe is ideal for busy weeknights or lazy weekends.
Some ingredients in this recipe might not be staples in every kitchen. Pearl barley is a type of whole grain that adds a delightful chewiness to the soup. Beef stew meat is typically pre-cut into chunks and can be found in the meat section of your supermarket. Dried thyme and dried rosemary are common herbs that add depth of flavor but might not be in everyone's spice rack.

Ingredients For Slow Cooker Beef Mushroom Barley Soup
Beef stew meat: Tender chunks of beef that become melt-in-your-mouth delicious after slow cooking.
Pearl barley: A whole grain that adds a chewy texture and nutty flavor to the soup.
Mushrooms: Earthy and savory, they complement the beef and barley perfectly.
Onion: Adds a sweet and aromatic base to the soup.
Carrots: Provide a touch of sweetness and color.
Celery: Adds a subtle crunch and enhances the overall flavor.
Garlic: Infuses the soup with a rich, aromatic flavor.
Beef broth: The liquid base that ties all the ingredients together, making the soup rich and flavorful.
Dried thyme: Adds a subtle earthy flavor.
Dried rosemary: Provides a fragrant, pine-like aroma.
Technique Tip for This Recipe
To enhance the flavor of the beef stew meat, consider searing it in a hot pan with a bit of oil before adding it to the slow cooker. This step caramelizes the surface of the meat, creating a rich, deep flavor that will elevate the overall taste of the soup. Additionally, sautéing the onion, carrots, and celery in the same pan can help to develop their flavors further before they join the rest of the ingredients in the slow cooker.
Suggested Side Dishes
Alternative Ingredients
beef stew meat - Substitute with chicken thighs: Chicken thighs provide a similar texture and richness, making them a good alternative for those who prefer poultry.
pearl barley - Substitute with farro: Farro has a similar chewy texture and nutty flavor, making it a great substitute for pearl barley.
sliced mushrooms - Substitute with zucchini: Zucchini can mimic the texture of mushrooms and absorb the flavors of the soup well.
chopped onion - Substitute with leeks: Leeks offer a milder, slightly sweet flavor that can complement the other ingredients in the soup.
chopped carrots - Substitute with parsnips: Parsnips have a similar texture but add a slightly sweeter and earthier flavor to the soup.
chopped celery - Substitute with fennel: Fennel provides a similar crunch and a subtle anise flavor that can enhance the soup's complexity.
minced garlic - Substitute with shallots: Shallots offer a milder, more nuanced flavor that can work well in place of garlic.
beef broth - Substitute with vegetable broth: Vegetable broth can be used for a lighter, vegetarian-friendly option while still providing a rich base for the soup.
dried thyme - Substitute with dried oregano: Dried oregano offers a similar earthy flavor that can complement the other herbs in the soup.
dried rosemary - Substitute with dried sage: Dried sage provides a slightly different but equally aromatic flavor that can enhance the soup's overall taste.
Other Alternative Recipes Similar to This Soup
How To Store or Freeze This Soup
Allow the soup to cool completely before storing. This helps maintain the texture and flavor of the ingredients.
Transfer the soup into airtight containers. For easy portion control, consider using individual serving-sized containers.
Label each container with the date. This ensures you keep track of how long the soup has been stored.
Store the soup in the refrigerator if you plan to consume it within 3-4 days. The beef and vegetables will stay fresh and flavorful.
For longer storage, place the containers in the freezer. The soup can be frozen for up to 3 months without significant loss of quality.
When ready to reheat, thaw the soup in the refrigerator overnight if frozen. This gradual thawing helps preserve the texture of the beef and barley.
Reheat the soup on the stovetop over medium heat, stirring occasionally until heated through. Alternatively, you can use a microwave-safe container and reheat in the microwave, stirring every few minutes to ensure even heating.
If the soup appears too thick after reheating, add a splash of beef broth or water to reach the desired consistency. Adjust seasoning as needed.
Enjoy your slow cooker beef mushroom barley soup with a side of crusty bread or a fresh salad for a complete meal.
How To Reheat Leftovers
For stovetop reheating:
- Pour the leftover soup into a pot.
- Heat over medium heat, stirring occasionally, until the soup is heated through. This should take about 10-15 minutes.
- If the soup has thickened too much, add a splash of beef broth or water to reach your desired consistency.
For microwave reheating:
- Transfer the soup to a microwave-safe bowl.
- Cover the bowl with a microwave-safe lid or plastic wrap, leaving a small vent for steam to escape.
- Heat on high for 2-3 minutes, stirring halfway through to ensure even heating.
- Continue heating in 1-minute increments if needed, until the soup is hot.
For slow cooker reheating:
- Pour the leftover soup back into the slow cooker.
- Set the slow cooker to low and heat for 1-2 hours, or until the soup is warmed through.
- Stir occasionally to ensure even heating.
For oven reheating:
- Preheat your oven to 350°F (175°C).
- Transfer the soup to an oven-safe dish and cover with aluminum foil.
- Heat in the oven for about 20-30 minutes, or until the soup is hot.
- Stir halfway through the heating process to ensure even warming.
Essential Tools for Making This Soup
Slow cooker: A countertop electrical cooking appliance used to simmer at a lower temperature than other cooking methods, allowing for unattended cooking for many hours.
Cutting board: A durable board on which to place material for cutting, essential for chopping vegetables and meat.
Chef's knife: A versatile knife used for chopping, slicing, and dicing ingredients.
Measuring cup: A kitchen utensil used to measure the volume of liquid or bulk solid cooking ingredients.
Measuring spoons: Tools used to measure small quantities of ingredients, such as dried thyme and rosemary.
Mixing bowl: A large bowl used to combine ingredients before transferring them to the slow cooker.
Wooden spoon: A sturdy spoon used for stirring ingredients together.
Garlic press: A tool used to crush garlic cloves efficiently.
Vegetable peeler: A tool used to peel the skin off vegetables like carrots.
Ladle: A large, long-handled spoon used for serving soup.
Tongs: A tool used to handle and transfer pieces of beef stew meat.
Meat thermometer: An optional tool to check the internal temperature of the beef to ensure it is cooked properly.
How to Save Time on Making This Soup
Pre-cut vegetables: Use pre-chopped onions, carrots, and celery from the store to save prep time.
Pre-sliced mushrooms: Buy pre-sliced mushrooms to avoid extra chopping.
Pre-minced garlic: Use jarred minced garlic to skip peeling and chopping.
Batch cooking: Double the recipe and freeze half for a quick meal later.
Instant pot option: Use an Instant Pot to reduce cooking time significantly.
Pre-made beef broth: Use store-bought beef broth to save time on making your own.

Slow Cooker Beef Mushroom Barley Soup Recipe
Ingredients
Main Ingredients
- 1 lb beef stew meat cut into 1-inch pieces
- 1 cup pearl barley
- 1 lb mushrooms sliced
- 1 onion chopped
- 2 carrots chopped
- 2 stalks celery chopped
- 4 cloves garlic minced
- 8 cups beef broth
- 1 teaspoon dried thyme
- 1 teaspoon dried rosemary
- Salt and pepper to taste
Instructions
- In a slow cooker, combine beef, barley, mushrooms, onion, carrots, celery, and garlic.
- Pour in beef broth and add thyme, rosemary, salt, and pepper.
- Cover and cook on low for 8 hours, or until beef and barley are tender.
- Adjust seasoning to taste before serving.
Nutritional Value
Keywords
Suggested Appetizers and Desserts for This Soup
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