Budget Lentil and Vegetable Soup
One pot, pantry staples, under $10 — done in 45 minutes.
When you're tired and the fridge is almost empty, this is the soup you make. Red lentils dissolve into a thick, filling broth while carrots, celery, and canned tomatoes do the heavy lifting on flavor. You don't need to soak anything, chop anything fancy, or babysit the stove. Just dump, simmer, and eat. It makes a big batch, so you'll have lunch tomorrow sorted too. Expect something deeply savory, slightly earthy, and genuinely satisfying — the kind of bowl that feels like you cooked all day even though you absolutely did not.
Ingredients
- 2 tbsp olive oil
- 1 unit yellow onion — diced
- 3 unit garlic cloves — minced
- 2 unit medium carrots — peeled and diced
- 2 unit celery stalks — diced
- 1 tsp ground cumin
- 1 tsp smoked paprika
- 0.5 tsp turmeric
- 0.5 tsp black pepper
- 1 cup red lentils — rinsed
- 1 unit can diced tomatoes — 14.5 oz, undrained
- 5 cup vegetable broth — or water with 2 bouillon cubes
- 1 tsp salt — plus more to taste
- 1 tbsp lemon juice — from about half a lemon
Method
- 1 Heat the olive oil in a large pot over medium heat. Add the diced onion and cook for 4–5 minutes, stirring occasionally, until softened and translucent.
- 2 Add the garlic, carrots, and celery. Cook for another 3 minutes, stirring a few times, until the vegetables start to soften.
- 3 Stir in the cumin, smoked paprika, turmeric, and black pepper. Let the spices cook for about 30 seconds until fragrant — this step builds flavor fast.
- 4 Add the rinsed red lentils, diced tomatoes (with their juices), vegetable broth, and salt. Stir everything together.
- 5 Bring the soup to a boil over high heat, then reduce to a steady simmer. Cook uncovered for 20–25 minutes, stirring occasionally, until the lentils have broken down and the soup is thick.
- 6 Stir in the lemon juice. Taste and adjust salt as needed. If the soup is thicker than you like, add a splash of water or broth and stir.
- 7 Ladle into bowls and serve as-is, or with crusty bread or crackers on the side.
Variations
- Add greens — Stir in 2 large handfuls of fresh or frozen spinach or kale in the last 2 minutes of cooking. It wilts right in and adds nutrition without changing the flavor much.
- Make it spicy — Add 0.5 tsp cayenne pepper or a pinch of red pepper flakes along with the other spices in step 3 for a gentle heat that builds with each bite.
- Swap the broth — No vegetable broth? Use water plus 2 bouillon cubes — chicken bouillon works too if you're not keeping it vegan. The soup will still taste great.
Notes
Red lentils are key here — they cook fast and naturally thicken the soup without any blending. If you only have green or brown lentils, add 10–15 extra minutes of cook time and expect a chunkier texture. The lemon juice at the end is not optional; it lifts the whole pot. This soup thickens a lot as it sits, so when reheating leftovers, add a splash of water and stir before warming.
Equipment that helps
- Large pot or Dutch oven — A wide, heavy-bottomed pot distributes heat evenly so the lentils simmer without scorching on the bottom.
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