6cups(1½L)vegetable brothyou'll only need 3 cups if using canned or pre-cooked lentils
1cancrushed tomatoes15 oz / 400 g
7oz(200g)spinachabout 7 cups
1½tablespoonsbalsamic vinegaror lemon juice
1teaspoonsaltor to taste + black pepper
Build the Flavor Base: Heat the 2 tablespoons extra virgin olive oil in a large pot. Add 1 large onion, 1 rib celery, 3 medium carrots, 3 cloves garlic (all chopped), and 1 teaspoon dried oregano.Cook for about 5 minutes, stirring often, until the vegetables soften but don’t brown.
Simmer the Soup: Add 1 cup dried lentils (rinsed), 2 medium potatoes (diced), 6 cups vegetable broth, and 1 can crushed tomatoes. Season with 1 teaspoon salt and black pepper. Bring to a boil, then lower the heat and simmer for about 30 minutes, stirring occasionally, until the lentils are tender and the soup is thick.Tip: If using canned lentils, cut the broth and cooking time in half.
Add the Greens: Stir in 7 oz spinach and 1½ tablespoons balsamic vinegar a few minutes before the soup is done. Cook until the greens wilt. Taste and adjust seasoning.
Serve: Serve hot with crusty bread, a drizzle of olive oil or chili oil, and optional toppings like parmesan, scallions, or Greek yogurt.
Substitutions
Olive oil → Avocado oil, or a splash of water if you prefer an oil-free lentil soup recipe.
Onion → Yellow or white onion is best, but shallots or leeks work well too.
Celery → Classic in Italian soups, but fennel stalks add a sweeter, aromatic note.
Carrots → Use parsnips or butternut squash for a different flavor twist.
Garlic → Fresh cloves are best, but garlic powder works in a pinch.
Dried oregano → Try dried thyme or rosemary if that’s what you have on hand.
Dried lentils → Brown, green, French, or black all work. Or swap with 3 cups cooked lentils (or 2 cans) and reduce broth and simmering time by half for a quicker easy lentil soup recipe.
Potatoes → Yukon gold or russet are classic. Sweet potatoes make it sweeter and more colorful.
Vegetable broth → We usually use bouillon powder dissolved in water — lighter groceries, one tub lasts weeks. Chicken broth also works.
Crushed tomatoes → Fire-roasted for smokiness, or substitute with tomato puree or diced tomatoes.
Spinach → Fresh is best. Swap with kale, Swiss chard, or frozen spinach (note: kale needs extra cooking time).
Balsamic vinegar → Red wine vinegar or lemon juice for brightness. A splash of acidity is essential to make the other flavors pop.
Tips
Build flavor slowly: Sweat onion, carrot, and celery in olive oil until soft, not browned. Add a splash of water if the pan gets dry.
Canned lentils work too: Just halve the broth and cooking time for the same rich result.
Add greens at the end: Spinach wilts in minutes, keeping your soup bright and fresh.
Balance flavors: A splash of balsamic or lemon juice at the end lifts the earthy lentils.
Rest before serving: Let the soup sit covered for 10 minutes so the flavors meld and the broth thickens.
StorageStore Mediterranean lentil soup in the fridge for 4 days or freeze up to 3 months in airtight containers.