Dinner · Part 3 of 3: Tips & recipe card

Slow Cooker Lamb Stew with Wholegrain Mustard Tips, FAQ & printable recipe

Name: Slow Cooker Lamb Stew with Wholegrain Mustard
Prep time: 10 min
Cook time: 6 h
Total time: 6 h 15 min
Cuisine: French-inspired
Ingredients: 2 lb lamb shoulder or leg, cut into 1-inch cubes; 3 large carrots, peeled and sliced; 1 large yellow onion, chopped; 3 tbsp wholegrain mustard; 2 cups poultry broth

By Clara Weller · Oct 9, 2026

A close-up of a bowl of slow cooker lamb stew with visible carrots and mustard sauce.

Prep: 10 min
Cook: 6 h
Total: 6 h 15 min
Serves: 4

Includes 5 min resting

Tips for success

For a deeper flavor, you can briefly sear the lamb in a separate pan before adding it to the slow cooker, although this is optional. If you choose to sear, ensure the pan is very hot and brown the meat in small batches to avoid steaming it. This step adds a layer of complexity to the final sauce but requires extra time and an additional pan to clean.

If the sauce is thinner than you prefer after the cooking time is complete, you can remove the lid for the final thirty minutes of cooking to allow some liquid to evaporate.

Alternatively, you can stir in a small amount of cornstarch mixed with cold water to thicken the sauce quickly. Always taste and adjust the seasoning with salt and pepper before serving to ensure the flavors are balanced to your preference.

Variations

Herbed Lamb Stew: Add two sprigs of fresh rosemary and one bay leaf to the slow cooker during the assembly phase. The woody notes of the rosemary pair beautifully with the lamb and the tangy mustard.
Root Vegetable Medley: Incorporate parsnips or diced potatoes along with the carrots. These heartier vegetables hold up well to the long cooking time and add a pleasant, starchy element to the stew.

Storage and make-ahead

Fridge: Keep in an airtight container for up to 3 days.
Freezer: Freeze in a freezer-safe container for up to 2 months. Thaw in the refrigerator before reheating.
Reheat: Reheat in a saucepan over medium heat until steaming hot, or microwave in 1-minute intervals.

Store any leftovers in an airtight container in the refrigerator for up to three days. Allow the stew to cool to room temperature for no more than two hours before placing it in the fridge. When reheating, use a saucepan over medium heat, stirring occasionally, or use a microwave-safe dish and heat in short intervals until the stew is steaming hot throughout.

This stew is an excellent candidate for making ahead of time as the flavors tend to meld and deepen after resting in the refrigerator overnight. Prepare the dish as instructed, then cool it quickly before refrigerating.

Simply reheat the entire portion when you are ready to serve. It is a convenient option for busy weeknights when you want a home-cooked meal without the preparation time.

Serving ideas

Serve this lamb stew in wide, shallow bowls to showcase the beautiful colors of the carrots and the glossy mustard sauce. Because the stew is quite rich, it pairs perfectly with simple side dishes that can absorb the extra sauce.

A crusty piece of sourdough bread or a side of steamed potatoes makes an excellent addition, providing a neutral base that complements the tangy notes of the wholegrain mustard.

For a fresh finish, consider sprinkling a small amount of finely chopped fresh parsley or chives over the top of each serving. This adds a pop of color and a touch of brightness that balances the deep, savory flavors of the lamb.

Ensure the stew is served hot, as the fats in the sauce are most pleasant when they are warm and fluid, enhancing the overall dining experience.

Frequently asked questions

Can this stew be made with a different cut of meat?

Yes, beef chuck roast is an excellent alternative to lamb. Follow the same preparation steps, ensuring the meat is cut into uniform cubes to ensure consistent cooking and tenderness.

Why is it important to let the lamb rest?

Resting the meat for at least five minutes allows the internal juices to redistribute throughout the fibers. This ensures that every bite is succulent and tender, preventing the meat from becoming dry once sliced or served.

Does the mustard flavor become too strong?

The long cooking time mellows the sharp, pungent flavor of the wholegrain mustard, transforming it into a nuanced, savory element. It adds depth to the sauce without overwhelming the natural flavor of the lamb.

Recipe card

Slow Cooker Lamb Stew with Wholegrain Mustard

Prep 10 minCook 6 hRest 5 minTotal 6 h 15 minServes 4

Ingredients

2 lb lamb shoulder or leg, cut into 1-inch cubes
3 large carrots, peeled and sliced
1 large yellow onion, chopped
3 tbsp wholegrain mustard
2 cups poultry broth

Instructions

Place the cubed lamb pieces into the bottom of the slow cooker. Arrange the sliced carrots and chopped onions evenly over the top of the meat.
Spoon the wholegrain mustard directly onto the vegetables and meat. Pour the poultry broth over all the ingredients until everything is partially submerged.
Cover and cook on low for 6 hours. Check that the lamb reaches an internal temperature of 145°F (63°C). Let the meat rest for 5 minutes before serving the stew hot.

Contains: mustard

Estimated nutrition per serving

Calories: 450
Protein: 35 g
Carbohydrates: 12 g
Fat: 28 g
Fiber: 3 g
Sugar: 5 g
Sodium: 650 mg

Automatic estimate from the ingredient list, not laboratory-verified.

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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.