Roasted Tomato and Lentil Soup

Roasted Tomato and Lentil Soup is a comforting, vibrant bowl where sweet, caramelized tomatoes and a whole head of garlic are roasted until deeply flavorful, then simmered with red lentils, aromatic vegetables, and herbs in a rich broth. The result is a creamy yet hearty soup with intensified tomato sweetness balanced by earthy lentils and bright herbs.

Why You’ll Love This Recipe

This Roasted Tomato and Lentil Soup elevates the classic tomato soup into something truly special and satisfying. Roasting the tomatoes and garlic brings out their natural sweetness and adds a subtle smoky depth that canned tomatoes simply can’t match, while the red lentils provide hearty protein and fiber, turning a light soup into a nourishing, filling meal.

It’s naturally vegan and gluten-free, making it perfect for healthy eating, family dinners, or meal prep. The hands-off roasting step means minimal active work, yet you get restaurant-quality flavor with pantry-friendly ingredients.

The soup is cozy enough for chilly evenings but bright and fresh enough for year-round enjoyment. Best of all, it tastes even better the next day as the flavors meld, and it pairs wonderfully with crusty bread, grilled cheese, or a simple green salad.

Whether you’re craving comfort food or a wholesome boost, this recipe delivers warmth, richness, and vibrant tomato goodness in every spoonful.

Yield: 6 servings

Roasted Tomato and Lentil Soup

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Creamy roasted tomato soup enriched with hearty red lentils and fragrant herbs.

Prep Time 15 minutes

Cook Time 45 minutes

Additional Time 5 minutes

Total Time 1 hour 5 minutes

Ingredients

• 2.5 pounds (about 1.1 kg) ripe tomatoes (Roma, cherry, or mix), halved or quartered
• 1 whole head garlic, top sliced off
• 4 tablespoons extra virgin olive oil, divided
• Salt and freshly ground black pepper, to taste
• 1 large onion, diced
• 1 medium carrot, diced
• 2 celery stalks, diced
• 3 tablespoons tomato paste
• 1 cup (about 200g) red lentils, rinsed and drained
• 6 cups (1.4 liters) vegetable broth
• 1 teaspoon dried oregano
• ¼ cup fresh basil leaves, chopped (plus extra for garnish)
• Optional: 1-2 teaspoons balsamic vinegar, pinch of red pepper flakes

Instructions

1. Preheat with anticipation — Set your oven to 425°F (220°C). This high heat will transform ordinary tomatoes into sweet, caramelized gems full of flavor.
2. Prepare for roasting — On a large baking sheet, toss the tomatoes and the whole head of garlic with 3 tablespoons of olive oil, salt, and pepper. Spread in a single layer for perfect roasting.
3. Roast to golden perfection — Place the tray in the oven and roast for 30-35 minutes, until the tomatoes are blistered, caramelized, and the garlic is soft and fragrant. Your kitchen will smell incredible!
4. Build the base — While the tomatoes roast, heat the remaining 1 tablespoon of olive oil in a large pot over medium heat. Add the diced onion, carrot, and celery. Sauté for 6-8 minutes until softened and aromatic.
5. Add concentrated flavor — Stir in the tomato paste and dried oregano (plus optional red pepper flakes). Cook for 2 minutes, stirring constantly, until the paste darkens slightly and smells rich.
6. Welcome the lentils — Add the rinsed red lentils to the pot and stir well so they’re coated in the savory vegetable mixture.
7. Combine with roasted goodness — Squeeze the roasted garlic cloves out of their skins directly into the pot. Add the roasted tomatoes (with all their juices) and pour in the vegetable broth. Season with salt and pepper.
8. Simmer to tenderness — Bring the soup to a gentle boil, then reduce heat to low, cover partially, and simmer for 15-20 minutes until the lentils are completely soft and the flavors have melded beautifully.
9. Blend for creaminess — Remove from heat. Use an immersion blender to purée the soup until smooth (or blend in batches in a regular blender). For a chunkier texture, blend only partially. Stir in most of the chopped basil and a splash of balsamic vinegar if using.
10. Serve with warmth and joy — Ladle the vibrant soup into bowls. Drizzle each serving with a little extra olive oil, top with more fresh basil, and enjoy this cozy, nourishing bowl of roasted tomato goodness paired with crusty bread or your favorite sides!

Notes

Red lentils break down quickly, creating a naturally thick and creamy soup without added dairy. If using a regular blender, let the soup cool slightly and vent the lid to avoid pressure buildup. The soup thickens as it sits—thin with extra broth when reheating. Fresh, ripe tomatoes make the biggest difference in flavor.

Nutrition Information

Yield

6

Serving Size

1
Amount Per Serving Calories 206Total Fat 10gSaturated Fat 2gUnsaturated Fat 9gSodium 892mgCarbohydrates 23gFiber 7gSugar 9gProtein 7g

The recipes and nutritional information on Yum Tonight are for informational purposes only. Always consult a healthcare provider for personalized dietary advice.

Recipe Tips and Tricks

Roast the tomatoes and garlic at a high temperature for maximum caramelization and sweetness—don’t rush this step. Spread everything in a single layer on the baking sheet to ensure even roasting rather than steaming. Use ripe, in-season tomatoes for the best flavor; a mix of cherry and Roma works beautifully.

Rinse lentils well before adding to remove any debris. For extra creaminess, blend a portion of the soup or the entire batch with an immersion blender. Taste and adjust acidity with a splash of balsamic vinegar or lemon juice at the end.

If the soup thickens too much, stir in a little extra broth when reheating. Fresh basil stirred in at the end adds a lovely aromatic lift that complements the roasted tomatoes perfectly.

Ingredients Notes

Fresh ripe tomatoes (Roma, cherry, or a mix) are the star—roasting concentrates their flavor and reduces acidity naturally. A whole head of garlic becomes sweet and mellow when roasted, adding incredible depth without sharpness.

Extra virgin olive oil helps with caramelization and carries the flavors. Onion, carrot, and celery create a classic savory base. Red lentils cook quickly and break down to thicken the soup naturally, adding protein and body.

Tomato paste intensifies the tomato flavor further. Vegetable broth keeps it vegan and light; use low-sodium so you can control seasoning. Dried or fresh herbs like basil and oregano bring classic Italian-inspired notes. Salt and freshly ground black pepper enhance everything, while an optional splash of balsamic vinegar adds subtle sweetness and tang.

Variations and Substitutions

Make it creamier by stirring in a splash of coconut milk, oat cream, or heavy cream (if not vegan) at the end. Add roasted red peppers or carrots to the baking sheet for extra sweetness and depth.

For a spicier kick, include red pepper flakes or a pinch of smoked paprika with the spices. Swap red lentils for brown or green if you prefer more texture, though they will need longer cooking.

Turn it into a heartier meal by adding a can of drained chickpeas or white beans. For a Caprese-inspired twist, top with fresh mozzarella, basil, and a drizzle of balsamic glaze. Use canned fire-roasted tomatoes in a pinch, though fresh roasted ones taste far superior.

Add spinach or kale in the last few minutes for extra greens. If you love herbs, finish with fresh thyme or parsley alongside the basil.

Storage Options

Store leftover Roasted Tomato and Lentil Soup in an airtight container in the refrigerator for up to 4-5 days. The flavors continue to improve over time. For longer storage, freeze in portioned containers for up to 3 months—thaw overnight in the fridge.

Reheat gently on the stovetop over medium-low heat, adding a splash of broth or water if the soup has thickened. Stir in fresh basil and a drizzle of olive oil just before serving to revive the bright flavors. Avoid boiling vigorously after reheating to preserve the texture.

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