One-Pot Tomato Basil Lentil Soup
By the QuiteRecipes team (Jamy & Kaïna) | Food Service Professional, Early Childhood Expert & Parents
A bowl of cozy one-pot tomato basil lentil soup — protein-packed lentils, sweet tomatoes, and fresh basil in a rich vegetarian broth.
A pot of tomato basil lentil soup is the definition of comfort you can actually feel good about — hearty legumes, sweet tomatoes, and a whisper of fresh basil simmering into something deeply satisfying and friendly to a student budget. Lentils break down just enough to thicken the broth while keeping their gentle shape, so every spoonful is substantial. It's vegetarian, high in fiber, and generous with flavor for very little money or effort. We love it on cold study nights with a crusty slice of bread, and it only gets better by the second day.
🥄 Ingredients
- 🫗 1 cup (200g) brown or green lentils, rinsed
- 🫗 1 tbsp olive oil
- 🫗 1 onion, diced
- 🫗 2 carrots, diced
- 🫗 2 celery stalks, diced
- 🫗 4 garlic cloves, minced
- 🫗 1 tsp dried oregano
- 🫗 1 can (400g) crushed tomatoes
- 🫗 5 cups (1.2L) vegetable or chicken broth
- 🫗 1 bay leaf
- 🫗 1/2 cup fresh basil leaves, chopped
- 🫗 Salt, black pepper, and a squeeze of lemon to finish
Nutrition Facts*
*Nutritional information is an estimate and may vary based on ingredients, brands and portion sizes. Values are provided per serving.
👨🍳 Instructions
**Heat the olive oil** in a large pot over medium and cook the onion, carrots, and celery 5 minutes until softened.
**Add the garlic and oregano**, cooking 1 minute until fragrant.
**Stir in the lentils, crushed tomatoes, broth, and bay leaf**; bring to a simmer.
**Simmer partially covered 25–30 minutes** until the lentils are tender.
**Fish out the bay leaf**, season to taste, and stir in the basil.
**Finish with a squeeze of lemon** and serve warm.
⚠️ Common Mistakes
- ✕
Cooking lentils in salted liquid from the start, which can firm the skins.
- ✕
Too-thin broth — simmer an extra ten minutes uncovered to thicken.
- ✕
Bulky basil added too early, which mutes its freshness.
- ✕
Forgetting the bay leaf in the final bowl.
🔄 Variations
Add greens: a couple handfuls of spinach stirred in at the end.
Spiced: a pinch of cumin and smoked paprika for warmth.
Add sausage for a heartier, non-vegetarian version.
Creamy: a swirl of coconut milk or yogurt on top.
🧊 Storage
- 📦
Keeps 5 days refrigerated and freezes beautifully for up to 3 months — meal-prep gold.
💡 Chef Tips
Don't salt too early — lentils absorb liquid better and soften more evenly in lightly salted broth.
Blend half the pot for an extra-creamy bowl.
The lemon is not optional — it lifts the whole soup.
Double the batch; homemade soup is the ultimate dorm breakfast, lunch, and dinner.
❓ FAQ
Do lentils need pre-soaking?
No — brown and green lentils cook in about 30 minutes straight from the bag.
Can I make it with red lentils?
Yes, but they soften almost to a puree in 15 minutes; reduce the simmer time.
Is this soup vegan?
Yes, as written with vegetable broth.
How many calories?
About 380 per bowl — a fiber-packed, budget-friendly meal.
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About the Authors
This recipe and guide was developed, tested, and approved in our home kitchen and daily life. Jamy is a retired Food Service District Manager and Early Childhood Program Manager who spent his career overseeing multi-site restaurant operations, large-scale culinary production, and daycare menu management. Kaïna brings the ultimate real-world test: making sure it brings ease and joy to our kids on a busy weeknight.
Read more about our professional background and philosophy →