Instant Pot Lentil Soup Recipe: Hearty Weeknight One-Pot Meal

This Instant Pot Lentil Soup comes together quickly using simple pantry ingredients. It’s nutritious and packed with vitamins and fiber. Serve it with crusty bread for a comforting, warming meal. The recipe is naturally vegan and gluten-free and takes about 30 minutes to be ready.

This soup is perfect for cold days when you want something hearty and restorative. It’s not a bland lentil soup — it’s full of flavor and satisfying texture.

It’s simple to make: add the ingredients to your Instant Pot, set it, and return to a hot bowl of soup. Serve with bread or crackers for an easy, cozy meal.

Why This Recipe Works

1. Simple pantry ingredients. With lentils, canned tomatoes, mirepoix (onion, carrot, celery), a few seasonings and vegetable stock you can make a nourishing meal. A handful of spinach at the end boosts color and nutrients.
2. Filling. This soup is substantial enough to serve as a main course and will keep you satisfied for hours.
3. Dump-and-start convenience. You can sauté the vegetables first if you like, but it’s not required. If you’re short on time, add everything to the pot and let the Instant Pot do the work.

Ingredients Needed

To make this Instant Pot Lentil Soup, gather the following:

• Lentils – Brown lentils are used here, but French green (Puy) or red lentils also work. Red lentils cook faster and yield a creamier texture, so reduce cooking time slightly if using them. Lentils provide protein, iron, potassium, magnesium and B vitamins.
• Vegetables – Carrots, celery and onion form a classic mirepoix base that builds flavor for the soup.
• Tomatoes – Canned diced tomatoes add acidity and liquid. Fresh diced tomatoes can be used when available.
• Vegetable stock – Vegetable broth keeps this version plant-based; you can substitute chicken stock if preferred.
• Spinach (optional) – Stirring in baby spinach at the end adds color and extra nutrients. Kale is a good substitute.
• Herbs and spices – Dried oregano, ground cumin, smoked paprika, salt and pepper provide depth and warmth.

How to Make Instant Pot Lentil Soup

1. Add ingredients to the pot. Combine everything except the spinach and lemon juice, then stir to combine.
2. Pressure cook. Secure the lid and set the vent to SEALING. Select PRESSURE COOK/MANUAL and cook for 15 minutes on high pressure. The cooker will take about 7–8 minutes to come to pressure before the timed cook begins.
3. Release pressure. When cooking ends, allow a natural release for 2–3 minutes, then quick-release any remaining pressure.
4. Finish. Carefully remove the lid. Discard bay leaves, stir in the spinach, close the lid and let the residual heat wilt the greens for a few minutes. Stir in lemon juice and adjust seasonings and texture, adding a little more stock or water if you prefer a thinner soup.
5. Serve. Ladle into bowls and serve with an extra squeeze of lemon and crusty bread.

Top Tips

• You can swap brown lentils for French green (Puy) or red lentils. If using red lentils, shorten cooking time to avoid overcooking.
• Rinse lentils before cooking; there is no need to soak them for this recipe.
• To reheat, use the sauté setting and stir frequently to prevent scorching.

Frequently Asked Questions

How To Serve Instant Pot Lentil Soup

This soup is delicious on its own—hearty, flavorful and filling. It also pairs well with:

• Bread – crusty French or Italian bread to soak up the broth.
• Crackers – for a bit of salt and crunch.
• Croutons – homemade croutons add texture and are easy to make.
• Grilled cheese – an air-fryer grilled cheese or classic grilled cheese makes a comforting combo.
• Cornbread – a slightly sweet cornbread complements the savory soup.
• Protein sides – roast chicken or a simple pan-fried chicken breast can round out the meal if you want more protein.
• Pasta salad – a chilled pasta salad makes a nice contrast for a filling soup-and-salad dinner.

I hope you enjoy this Instant Pot Lentil Soup. It’s one of those easy, nourishing recipes to keep in your rotation—quick to prepare, economical and satisfying. Happy cooking and stay warm!