Simple Lentil Soup with Garlic and Thyme

This Simple Lentil Soup with Garlic and Thyme is a cozy, nourishing one-pot meal featuring tender lentils simmered with aromatic garlic, fresh thyme, and hearty vegetables in a flavorful broth. Ready in about an hour, it offers comforting, rustic flavors with minimal effort—perfect for chilly evenings or wholesome meal prep.

Why You’ll Love This Recipe

You’ll fall in love with this Simple Lentil Soup with Garlic and Thyme because it delivers big, savory comfort using everyday ingredients that come together beautifully in one pot. The combination of sautéed garlic and fresh thyme creates an irresistible herbal aroma that fills your kitchen, while the lentils provide satisfying texture and plenty of plant-based protein and fiber.

It’s naturally vegan and gluten-free, incredibly budget-friendly, and tastes even better the next day as the flavors meld. The soup is versatile enough for busy weeknights yet elegant enough to serve to guests. With its rustic charm and wholesome goodness, this recipe feels like a warm hug in a bowl—simple, satisfying, and endlessly soothing.

Yield: 6 servings

Simple Lentil Soup with Garlic and Thyme

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Hearty lentil soup infused with garlic and fresh thyme—simple, savory, and deeply comforting

Prep Time 10 minutes

Cook Time 50 minutes

Additional Time 5 minutes

Total Time 1 hour 5 minutes

Ingredients

• 2 tablespoons olive oil
• 1 large yellow onion, finely diced
• 2 medium carrots, peeled and diced
• 2 celery stalks, diced
• 4 cloves garlic, minced
• 2-3 sprigs fresh thyme (or 1 teaspoon dried thyme)
• 1 ½ cups (about 300g) brown or green lentils, rinsed well
• 6 cups (1.5 liters) vegetable broth (or water)
• 1 bay leaf (optional)
• 1 teaspoon salt (or to taste)
• Freshly ground black pepper
• Juice of ½ lemon (or 1 teaspoon apple cider vinegar)
• Optional garnishes: fresh parsley, extra thyme leaves, or a drizzle of olive oil

Instructions

1. Prepare your ingredients and warm up the kitchen — Gather everything you need and place a large pot or Dutch oven over medium heat. This simple soup is about to create wonderful, homey aromas.
2. Sauté the aromatic vegetables — Add the olive oil to the pot and let it warm. Toss in the diced onion, carrots, and celery. Stir occasionally and cook for 6-8 minutes until the vegetables soften and the onion turns translucent and sweet.
3. Add garlic and thyme for fragrant magic — Stir in the minced garlic and fresh thyme sprigs (or dried thyme). Cook for about 1 minute until the garlic becomes wonderfully fragrant—your kitchen will smell incredible at this point!
4. Rinse and introduce the lentils — While the vegetables cook, rinse your lentils well. Add the drained lentils to the pot and stir everything together so the lentils get coated in the savory aromatics.
5. Pour in the broth and season — Add the vegetable broth, bay leaf (if using), salt, and a few generous grinds of black pepper. Give the mixture a good stir, scraping the bottom of the pot to release any flavorful bits.
6. Bring the soup to a gentle simmer — Increase the heat slightly to bring the soup to a soft boil, then immediately reduce to low. Partially cover the pot with a lid.
7. Simmer until the lentils are perfectly tender — Let the soup cook gently for 35-45 minutes, stirring occasionally. The lentils will become soft and the broth will thicken slightly into a comforting consistency.
8. Remove herbs and brighten the flavors — Fish out the thyme sprigs and bay leaf if used. Stir in the fresh lemon juice or vinegar. Taste and add more salt, pepper, or lemon as needed to make the flavors sing.
9. Let it rest briefly for better taste — Remove the pot from the heat and allow the soup to sit for a few minutes. This short rest helps all the delicious flavors settle together beautifully.
10. Serve with love and enjoy — Ladle the warm soup into bowls. Garnish with chopped fresh parsley, extra thyme leaves, or a light drizzle of olive oil if desired. Serve with crusty bread and savor every cozy spoonful!

Notes

Brown or green lentils hold their shape best in this soup, unlike red lentils which break down more. The soup naturally thickens as it cools—thin with a splash of broth or water when reheating. Fresh thyme gives the brightest flavor, but dried works well too. This recipe is naturally vegan, gluten-free, and oil can be reduced or omitted for a lighter version.

Nutrition Information

Yield

6

Serving Size

1
Amount Per Serving Calories 110Total Fat 5gSaturated Fat 1gUnsaturated Fat 4gSodium 1226mgCarbohydrates 13gFiber 4gSugar 4gProtein 4g

The recipes and nutritional information on Yum Tonight are for informational purposes only. Always consult a healthcare provider for personalized dietary advice.

Recipe Tips and Tricks

Rinse the lentils thoroughly under cold water and pick out any small stones or debris before cooking for the cleanest result. Use fresh thyme sprigs if possible for brighter herbal notes—tie them with kitchen twine for easy removal later, or strip the leaves if you prefer.

Sauté the vegetables and garlic slowly to develop sweet, deep flavor without browning too much. Simmer gently rather than boiling hard to keep the lentils intact and the broth clear. Taste and adjust seasoning toward the end, as broth saltiness varies.

For a touch of brightness, finish with a squeeze of fresh lemon juice or a splash of vinegar. Stir occasionally during simmering to prevent sticking, and add extra broth if the soup becomes thicker than you like.

Ingredients Notes

Brown or green lentils work wonderfully here as they hold their shape while becoming tender, offering a pleasant, slightly firm bite in every spoonful. Fresh garlic is essential—its pungent aroma mellows beautifully during cooking and pairs perfectly with the earthy thyme.

Fresh thyme sprigs bring a subtle, woodsy herbal flavor that elevates the soup without overpowering it; dried thyme can substitute in a pinch but use less. Onion, carrots, and celery form the classic aromatic base (mirepoix), adding natural sweetness and depth. Olive oil carries the flavors during sautéing and adds a touch of richness.

Vegetable broth (or water with bouillon) creates the savory liquid foundation—low-sodium versions let you control the salt. Salt and black pepper enhance all the ingredients, while an optional bay leaf adds another layer of subtle aroma. A final splash of lemon juice or vinegar brightens the finished soup, balancing the earthiness of the lentils and herbs.

Variations and Substitutions

This flexible soup welcomes many delicious changes. For a heartier version, add diced potatoes, sweet potatoes, or chopped spinach in the last 15 minutes of cooking. If you enjoy more heat, stir in a pinch of red pepper flakes or smoked paprika along with the garlic.

Swap brown or green lentils for French (Puy) lentils if you want them to hold their shape even better, though they may need a few extra minutes of simmering. For a creamier texture, partially blend the soup with an immersion blender or mash some lentils against the side of the pot.

Add diced tomatoes or a spoonful of tomato paste for a slightly tangy, richer broth. To make it non-vegan, use chicken broth and top with grated Parmesan or a dollop of yogurt. Include other herbs like rosemary or parsley for varied flavor profiles.

For an oil-free version, sauté the vegetables in a splash of broth instead of olive oil. You can even stir in cooked grains like rice or barley near the end for extra substance.

Storage Options

Let the soup cool completely before transferring to airtight containers. It keeps well in the refrigerator for up to 5 days, with flavors often improving on the second day. For longer storage, freeze in portioned containers or freezer bags for up to 3 months.

Thaw overnight in the fridge or reheat gently on the stovetop from frozen, adding a little water or broth if the soup has thickened too much. It reheats beautifully in the microwave too.

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