One-Pot Lentil Vegetable Soup

Featured in: One-Pot Comfort Dishes

This easy one-pot lentil soup delivers nourishing plant-based protein and Mediterranean-inspired flavors in every serving. Dry lentils simmer with tomatoes, onion, garlic, and vegetable broth for a comforting result. Thyme, cumin, or chili flakes add depth to the rich base, while the option to include carrots or celery boosts texture. Simple to prepare, the soup only requires a large pot and basic chopping tools, making it ideal for quick weeknight meals. Naturally free from major allergens and suitable for vegan, gluten-free diets, the soup freezes well and pairs perfectly with crusty bread.

Updated on Fri, 31 Oct 2025 11:16:00 GMT
Hearty One-Pot Lentil Soup simmering with rich flavors and vibrant vegetables.  Save
Hearty One-Pot Lentil Soup simmering with rich flavors and vibrant vegetables. | sizzlebloom.com

A nourishing, budget-friendly soup packed with plant-based protein and hearty vegetables.

When I started meal prepping, this one-pot lentil soup became a staple for busy weekdays. The flavors get better each time I make it.

Ingredients

  • Dry lentils (green or brown): 1 cup
  • Diced tomatoes: 1 can (14 oz)
  • Small onion, diced: 1
  • Garlic, minced: 2 cloves
  • Vegetable broth: 4 cups
  • Salt and pepper: To taste
  • Optional spices (thyme, cumin, chili flakes): To taste

Instructions

Sauté aromatics:
In a large pot, sauté onion and garlic over medium heat until softened.
Add soup ingredients:
Add lentils, diced tomatoes (with liquid), and vegetable broth.
Boil and simmer:
Bring to a boil, then reduce heat to low. Simmer for 25–30 minutes, or until lentils are soft.
Season and serve:
Season to taste. Serve warm with crusty bread.
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We love making this soup together on chilly evenings – it's one of those simple dishes that brings everyone to the table.

Required Tools

You'll need a large pot, a ladle, and a cutting board and knife for prepping vegetables.

Allergen Information

This soup is naturally free from major allergens. Always check vegetable broth for gluten or additives before using.

Nutritional Information

Per serving: 270 calories, 4 g total fat, 38 g carbohydrates, 16 g protein.

Comforting One-Pot Lentil Soup served hot, perfect with crusty bread on chilly days.  Save
Comforting One-Pot Lentil Soup served hot, perfect with crusty bread on chilly days. | sizzlebloom.com

Make this lentil soup part of your weekly routine – it tastes even better the next day. Enjoy every spoonful!

Common Questions

Can I use red lentils instead of green or brown?

Red lentils cook much faster and may result in a creamier texture, but they're also suitable for this soup.

What vegetables can I add for more flavor?

Chopped carrots, celery, or bell peppers work well; simply add them with the onion and garlic.

How do I store leftovers?

Cool the soup completely, then refrigerate in an airtight container for up to 4 days, or freeze for later.

How do I ensure the soup is gluten-free?

Double-check the vegetable broth label for any gluten or additives to keep the dish gluten-free.

Can I make this soup ahead?

Yes, it tastes even better after resting. Prepare in advance and reheat as needed for meal prep.

Which seasonings pair best with lentil soup?

Thyme, cumin, chili flakes, and fresh herbs offer excellent flavor without overpowering the lentils.

One-Pot Lentil Vegetable Soup

Enjoy a hearty, plant-forward lentil soup packed with vegetables in every comforting bowl.

Setup Duration
10 min
Heat Duration
25 min
Complete Duration
35 min
Created by Emily Dawson

Classification One-Pot Comfort Dishes

Skill Level Easy

Heritage Mediterranean-Inspired

Output 4 Portions

Nutrition Labels Plant-Based, No Dairy, No Gluten

Components

Base

01 1 cup dry lentils (green or brown)
02 1 can (14 oz) diced tomatoes, including liquid
03 1 small onion, diced
04 2 cloves garlic, minced
05 4 cups vegetable broth

Seasoning

01 Salt to taste
02 Black pepper to taste
03 Optional: thyme, cumin, or chili flakes

Method Steps

Phase 01

Sauté Aromatics: In a large pot over medium heat, sauté diced onion and minced garlic until translucent and fragrant.

Phase 02

Combine Main Ingredients: Add dry lentils, diced tomatoes with liquid, and vegetable broth to the pot. Stir well to incorporate.

Phase 03

Simmer: Increase heat to bring mixture to a boil, then immediately reduce to low. Cover and simmer for 25 to 30 minutes, stirring occasionally, until lentils are tender.

Phase 04

Season and Serve: Season with salt and black pepper to taste, adding thyme, cumin, or chili flakes if desired. Ladle soup into bowls and serve warm.

Kitchen Tools

  • Large pot
  • Ladle
  • Cutting board
  • Chef's knife

Dietary Alerts

Always review ingredients individually for potential allergens and seek professional medical guidance when uncertain.
  • Naturally free from major allergens; verify vegetable broth for gluten or additives if required.

Dietary Information (per portion)

Values shown are estimates and shouldn't replace professional medical consultation.
  • Energy Value: 270
  • Fats: 4 g
  • Carbohydrates: 38 g
  • Proteins: 16 g