Best Instant Pot Lentil Soup Recipe

Looking for a comforting, nutritious meal that’s quick and easy to prepare? This Instant Pot lentil soup ticks all the boxes. 

Hearty, flavorful, and packed with wholesome ingredients, it’s a family favorite that will leave everyone satisfied.

Using the Instant Pot, this lentil soup comes together in no time—perfect for busy weeknights, meal prep, or whenever you’re craving something cozy.

Ingredients for Instant Pot Lentil Soup

Here’s what you’ll need:

• 1 cup green lentils (rinsed)
• 1 tablespoon coconut oil
• 1 medium yellow onion, diced
• 2 medium tomatoes, diced
• 3 cloves garlic, minced
• 2 celery stalks, diced
• 1 large carrot, diced
• 1 small red bell pepper, diced
• 3 cups vegetable broth
• ½ cup thick coconut milk (optional)
• 2–3 cups baby spinach
• 2 tablespoons fresh lemon juice
• 2 teaspoons curry powder or garam masala
• ½ teaspoon turmeric
• ½ teaspoon red chili powder (optional for heat)
• 1 teaspoon ground cumin
• Salt and black pepper, to taste

How to Make Instant Pot Lentil Soup

1. Rinse the lentils: Thoroughly wash the green lentils under running water until the water runs clear. Set aside.
2. Sauté the aromatics: Turn the Instant Pot to “Sauté” mode and let it heat up. Add the coconut oil, followed by the minced garlic. Sauté for about 30 seconds.
3. Add the onions: Stir in the diced onions and cook until they turn soft and translucent.
4. Add the veggies and lentils: Add the tomatoes, celery, carrots, bell pepper, and rinsed lentils. Stir everything together.
5. Add spices and liquids: Sprinkle in the curry powder, turmeric, chili powder, ground cumin, salt, and pepper. Pour in the vegetable broth and optional coconut milk. Stir well.
6. Pressure cook: Close the lid, seal the valve, and set the Instant Pot to “Soup” mode or “Manual” (High Pressure) for 15 minutes.
7. Quick release: Once the cooking cycle is done, carefully press the Quick Release button to let out the steam. Open the lid.
8. Finish with spinach and lemon: Add the baby spinach and fresh lemon juice to the pot. Stir until the spinach wilts. Taste and adjust the seasoning if needed.
9. Serve warm: Ladle the soup into bowls and enjoy it hot.

Recipe Variations You’ll Love

Looking to switch up your soup? Try this:

• Switch the lentils: Substitute green lentils with brown lentils for a milder flavor. Avoid red lentils, as they cook too quickly and may become mushy.
• Greens: Replace baby spinach with kale, mustard greens, or Swiss chard.
• Add vegetables: Use up leftover veggies like butternut squash, sweet potatoes, zucchini, or green beans.
• Omit coconut milk: For a lighter version, skip the coconut milk. The soup will still be hearty and delicious.
• Change the spices: Use Italian herbs (like thyme and oregano) instead of curry powder for a different flavor profile.

What to Serve with Lentil Soup

Lentil soup is a complete meal on its own, but you can pair it with these delicious sides:

1. Naan Bread: Soft, fluffy naan bread is perfect for dipping into the soup.
2. Garlic Bread: Homemade or store-bought garlic bread makes a flavorful addition.
3. Rocket Salad: Toss fresh rocket leaves, cherry tomatoes, and onion with lemon juice for a light, refreshing side.
4. Basmati Rice: Serve the soup with steamed basmati or jasmine rice for a heartier meal.
5. Roasted Potatoes: Seasoned, crispy roast potatoes complement the soup beautifully.

How to Store and Reheat Lentil Soup

Storing in the Refrigerator

Allow the soup to cool completely. Transfer it to an airtight container and store it in the fridge for up to 3 days.

Freezing the Soup

For longer storage, freeze the soup in portion-sized containers or freezer-safe bags for 2–3 months. Leave out the spinach when freezing and add it when reheating for the best texture.

Reheating Instructions

• Microwave: Thaw frozen soup in the fridge overnight, then microwave until piping hot, stirring occasionally.
• Stovetop: Reheat the soup over medium heat, stirring until warmed through. Add fresh spinach during reheating for extra greens.

Final Thoughts

This Instant Pot lentil soup is simple, healthy, and packed with flavor, making it perfect for busy weeknights or meal prepping. 

With its wholesome ingredients and customizable options, it’s a recipe the whole family will love.

Try it with your favorite sides like naan, rice, or salad, and enjoy a nutritious, satisfying meal in no time. 

Whether you’re cooking ahead for the week or serving it fresh, this lentil soup is sure to become a go-to recipe in your kitchen.

Frequently Asked Questions