Dinner · Part 3 of 3: Tips & recipe card
Slow Cooker Green Lentil and Mushroom Stew Tips, FAQ & printable recipe

- Prep
- Cook
- Total
- Serves
- 4
Tips for success
To deepen the flavor profile, you can toast the dry lentils in a pan for a minute or two before adding them to the slow cooker, though this is optional.
Adding a splash of balsamic vinegar at the very end of the cooking time can provide a bright, acidic note that cuts through the earthiness of the lentils and mushrooms, balancing the savory bouillon base.
If you prefer a thicker stew, you can mash a small portion of the cooked lentils against the side of the slow cooker with a spoon and stir them back in.
This simple technique naturally thickens the sauce without the need for additional starches. Always taste the stew before serving to adjust the salt levels, as different brands of bouillon cubes can vary significantly in their sodium content.
Variations
- Root Vegetable Addition: Add diced carrots or parsnips during the assembly phase to introduce natural sweetness and extra texture to the stew, making it even more filling.
- Spicy Kick: Stir in a teaspoon of red pepper flakes or a dash of hot sauce along with the bouillon to give the dish a gentle, warming heat.
Storage and make-ahead
- Fridge
- Store in an airtight container for up to 3 days. Ensure the stew has cooled to room temperature within 2 hours before placing it in the refrigerator.
- Freezer
- The stew can be frozen in a freezer-safe container for up to 2 months. Thaw overnight in the refrigerator before reheating gently on the stove.
- Reheat
- Reheat in a saucepan over medium-low heat, stirring occasionally, until hot throughout. Add a splash of water if the stew has thickened too much in storage.
Store any leftover stew in an airtight container in the refrigerator. It will keep well for up to 3 days. Because lentils continue to absorb liquid as they sit, the stew may thicken significantly when chilled.
When you are ready to serve the leftovers, simply add a tablespoon or two of water to the pot while reheating to restore the original, desired consistency of the broth.
This dish is an excellent candidate for making ahead, as the flavors often deepen and improve after sitting in the refrigerator overnight.
You can prepare the entire recipe in advance and store it, or simply chop and prep all your vegetables and measure your ingredients the night before. This makes the final assembly in the morning or early afternoon a matter of just a few minutes of effort.
Serving ideas
Serve the stew hot in deep ceramic bowls to keep it warm for longer. It pairs beautifully with a slice of crusty, toasted sourdough bread, which is perfect for soaking up the savory broth. A simple side salad with a bright vinaigrette provides a refreshing contrast to the hearty, earthy flavors of the lentils and mushrooms.
For a more substantial presentation, consider topping each bowl with a sprinkle of fresh herbs or a light drizzle of high-quality olive oil just before serving. The warmth of the stew makes it a perfect main course for cooler weather, and it is easily scalable if you are hosting a larger group of people for a casual, comforting dinner at home.
Frequently asked questions
Can this stew be made ahead of time?
Why is the stew too thick after storage?
Can different types of lentils be used?
Slow Cooker Green Lentil and Mushroom Stew

Ingredients
- 1 cup green lentils, rinsed
- 8 oz button mushrooms, sliced
- 1 onion, chopped
- 1 vegetable bouillon cube, crumbled
- 2 sprigs fresh thyme
- 3 cups water
Instructions
- Begin by rinsing the green lentils under cold water to remove any debris. Slice the button mushrooms thinly and chop the onion into uniform pieces to ensure even cooking throughout the dish.
- Place the rinsed lentils into the bottom of the slow cooker. Scatter the sliced mushrooms and chopped onions over the top. Crumble the vegetable bouillon cube evenly over the vegetables and add the fresh thyme sprigs.
- Pour the water over the assembled ingredients in the slow cooker. Cover with the lid and set to cook on high for approximately 4 hours, or until the lentils are tender and the stew has thickened to your desired consistency.
Estimated nutrition per serving
- Calories
- 280
- Protein
- 14.5 g
- Carbohydrates
- 42 g
- Fat
- 3.5 g
- Fiber
- 15 g
- Sugar
- 2.5 g
- Sodium
- 450 mg
This recipe is based on a short cooking video and is published under the pen name Clara Weller. It was checked before publication, but errors can slip through. Nutrition, when shown, is an estimate. Read more in our editorial policy and on our food safety page.






