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Slow Cooker French Lentil and Root Vegetable Cassoulet

Name: Slow Cooker French Lentil and Root Vegetable Cassoulet
Prep time: 20 min
Cook time: 360 min
Total time: 380 min
Yield: 6 servings
Cuisine: French-Inspired
Ingredients: 1 cup green or brown lentils, rinsed and drained; 1 large onion, diced; 3 cloves garlic, minced; 2 medium carrots, peeled and chopped; 2 parsnips, peeled and chopped; 1 small rutabaga, peeled and diced; 2 medium potatoes, peeled and diced; 1 celery stalk, diced; 1 cup canned diced tomatoes; 4 cups vegetable broth (low sodium); 2 tablespoons tomato paste; 1 teaspoon dried thyme; 1 teaspoon dried rosemary; 1 teaspoon smoked paprika; 1 bay leaf; Salt and freshly ground black pepper, to taste; 2 tablespoons olive oil; Fresh parsley, chopped (for garnish)

By PanPotPlates Editorial TeamPublished Apr 28, 2026 | Updated May 12, 2026

French-Inspired 380 mins slow cookerone potgluten freefamily dinnercomfort foodbudget friendlymeal prephearty

Slow Cooker French Lentil and Root Vegetable Cassoulet is a practical PanPotPlates recipe built for dependable weeknight cooking.

Prep 20 min

Cook 360 min

Total 380 min

Servings 6

Difficulty easy

Cuisine French-Inspired

Ingredients

Servings 6

1 cup green or brown lentils, rinsed and drained
1 large onion, diced
3 cloves garlic, minced
2 medium carrots, peeled and chopped
2 parsnips, peeled and chopped
1 small rutabaga, peeled and diced
2 medium potatoes, peeled and diced
1 celery stalk, diced
1 cup canned diced tomatoes
4 cups vegetable broth (low sodium)
2 tablespoons tomato paste
1 teaspoon dried thyme
1 teaspoon dried rosemary
1 teaspoon smoked paprika
1 bay leaf
Salt and freshly ground black pepper, to taste
2 tablespoons olive oil
Fresh parsley, chopped (for garnish)

Ingredients for Slow Cooker French Lentil and Root Vegetable Cassoulet

Instructions

Turn the slow cooker to the sauté or high setting. Add olive oil, then sauté diced onion and minced garlic for 3-4 minutes until softened and fragrant.
Add chopped carrots, parsnips, rutabaga, potatoes, and celery. Stir to combine and cook for another 2 minutes.
Add rinsed lentils, canned diced tomatoes, vegetable broth, tomato paste, dried thyme, rosemary, smoked paprika, bay leaf, salt, and pepper. Stir well to combine all ingredients.
Cover slow cooker and set to low heat. Cook for 5-6 hours, or until lentils and vegetables are tender and the cassoulet has thickened.
Remove bay leaf. Taste and adjust seasoning with additional salt and pepper if needed.
Serve hot, garnished with freshly chopped parsley. This dish pairs well with crusty gluten-free bread or a fresh green salad for a balanced meal.
Store leftovers in an airtight container in the refrigerator for up to 4 days or freeze for up to 3 months.

Slow Cooker French Lentil and Root Vegetable Cassoulet cooking in the recommended pan or pot

Tips

Pan Or Pot Required

This Slow Cooker French Lentil and Root Vegetable Cassoulet is crafted for simple one-pot cooking using a slow cooker .

Cookware Size Guidance

An ideal slow cooker size for this French lentil and root vegetable cassoulet is between 5 to 6 quarts.

Cookware Swap Guidance

h ideal for tender lentils and root vegetables, substitutions are possible: Heavy-Duty Dutch Oven or Oven-Safe Pot: Use on stovetop or in the oven at low temperature (~300°F/150°C), covered tightly, stirring occasionally.

Leftovers Quality

Reheat gently and add a splash of liquid when needed to keep the texture moist and tender.

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Slow Cooker French Lentil and Root Vegetable Cassoulet

Recipe Details

Ingredients

Instructions