3-Ingredient Tomato Lentil Soup {vegan, high-protein, oil-free}

A bowl of 3-ingredient tomato lentil soup brings together split red lentils, crushed tomatoes, and Italian herb seasoning in a simple, oil-free preparation. The lentils cook directly in water until they are falling apart, then the tomatoes and herbs join the pot for a final simmer. With no sautéing step and no long ingredient list, the process stays focused on the ingredients themselves.

The finished soup is pureed until creamy-smooth, either with an immersion blender or in a high-speed blender. That final step changes the cooked lentils and tomatoes into a silky soup rather than leaving the lentils whole. Salt and freshly ground pepper are added during cooking and adjusted at the end according to taste.

The recipe makes 8 cups, with a serving size of 2 cups. It takes 2 minutes to prepare and 40 minutes to cook, for a total time of 42 minutes. The result is a practical vegan, high-protein, oil-free soup built around a few clearly defined ingredients and a straightforward cooking sequence.

Because the lentils are cooked before the tomatoes are added, each stage has a distinct purpose: first soften the lentils, then simmer the tomato-and-herb mixture, and finally puree the soup. The method is uncomplicated, but following that order preserves the texture needed for a smooth finish.

Ingredients

• 5 cups water

• 1 cup split red lentils (rinsed and drained)

• 1 28- ounce can crushed tomatoes (use a high quality brand, such as Cento)

• 1 tablespoon Italian herb seasoning

• fine sea salt and freshly ground pepper

The salt and pepper are adjustable rather than fixed entirely by the ingredient list. The cooking instructions specify 1/4 teaspoon salt and 1/8 teaspoon pepper when the tomatoes and herbs are added, followed by an adjustment to taste after pureeing. That gives the soup a defined starting point while leaving the final seasoning to the cook.

There is no oil in the ingredient list, and the soup does not depend on a separate sautéing step. The preparation stays minimal: rinse and drain the lentils, measure the water and seasoning, and have the crushed tomatoes ready for the second stage of cooking. Since the recipe uses so few ingredients, the specified high-quality tomato brand is the only ingredient-quality note attached to a particular item.

How to Make 3-Ingredient Tomato Lentil Soup {vegan, high-protein, oil-free}

The soup is prepared in two cooking stages followed by pureeing. Begin by bringing 5 cups of water to a boil in a large saucepan over high heat. Add the rinsed and drained split red lentils, then reduce the heat to medium-low. Cook the lentils uncovered for 20 to 25 minutes.

The important doneness cue is that the lentils are falling apart. Once they reach that point, add the crushed tomatoes, Italian herb seasoning, 1/4 teaspoon fine sea salt, and 1/8 teaspoon freshly ground pepper. Reduce the heat to low, partially cover the saucepan, and simmer for 15 minutes longer. This tomato-and-herb stage follows the lentil cooking rather than happening at the same time.

After the simmer, puree the soup. An immersion blender can be used directly in the saucepan, or the soup can be transferred to a high-speed blender for pureeing. Continue until the soup is creamy-smooth, then adjust the salt and pepper to taste. The recipe’s listed times are 2 minutes of preparation and 40 minutes of cooking, for 42 minutes total.

Why You’ll Love It

This 3-ingredient tomato lentil soup keeps its ingredient list unusually focused without making the process complicated. The core combination is split red lentils, crushed tomatoes, and Italian herb seasoning, supported by water and adjustable salt and pepper. There is no oil, and the recipe does not require a separate preparation stage before the lentils begin cooking.

Its practical value also comes from the clear sequence. The lentils cook until they are falling apart, the tomatoes and herbs simmer with them for a final 15 minutes, and the soup is pureed at the end. That makes the recipe easy to follow from one stage to the next rather than requiring several parallel preparations. For another recipe idea, explore High Protein Broccoli Cheddar Soup. For another recipe idea, explore High-Protein, High-Fiber Chicken Soup.

The yield is 8 cups, and the stated serving size is 2 cups. The combination of a defined yield, a short ingredient list, and a 42-minute total time gives the recipe a useful scale for preparing a full pot of soup without adding unsupported complexity. You can also browse Healthy Veggie-Loaded Vegetable Soup for another option.

Pro Tips for Success

The most important consistency cue comes before the tomatoes enter the saucepan: cook the lentils until they are falling apart. The recipe gives a 20- to 25-minute range, but the condition of the lentils is the useful guide within that range. Cooking them uncovered at medium-low heat follows the specified sequence and prepares them for the smooth texture created later. You can also browse The BEST Classic Split Pea Soup Recipe (Vegan & Gluten-Free) for another option. For another recipe idea, explore Easy Healthy Taco Pasta (High Protein & High Fiber).

Keep the second stage distinct. Add the crushed tomatoes, Italian herb seasoning, 1/4 teaspoon salt, and 1/8 teaspoon pepper only after the lentils have reached the falling-apart stage. Then reduce the heat to low and simmer partially covered for 15 minutes. The partial cover belongs to this tomato-and-herb simmer, not the earlier lentil cooking stage.

For the final texture, puree after the simmer rather than stopping with the cooked ingredients in their original form. Use an immersion blender in the saucepan or transfer the soup to a high-speed blender. Puree until creamy-smooth, then taste and adjust the salt and pepper. The initial seasoning amounts are a starting point; the final adjustment is part of the stated method.

Flavor and Texture

The finished soup is built around the combination of crushed tomatoes, split red lentils, and Italian herb seasoning. The tomatoes provide the defining tomato element, while the herb seasoning gives the soup its Italian herb character. Fine sea salt and freshly ground pepper round out the seasoning, with the final amounts adjusted to taste. Another recipe you may want to try is HIGH PROTEIN MINESTRONE SOUP. For another recipe idea, explore High Protein Tomato Soup.

Texture is the most clearly described finishing quality: after cooking, the soup is pureed until creamy-smooth. The lentils are first cooked until they are falling apart, which prepares them for that final transformation. Pureeing creates a silky consistency rather than leaving the cooked lentils and tomatoes separate in the bowl.

The soup’s texture therefore depends on both the lentil stage and the blending stage. The lentils need to soften fully before the tomato mixture is simmered, and the soup needs to be pureed afterward to reach the stated creamy-smooth result. An immersion blender or high-speed blender can accomplish that final step.

Serving Suggestions

The recipe yields 8 cups of soup, and the stated serving size is 2 cups. That yield corresponds to four 2-cup servings. Serve the soup after it has been pureed until creamy-smooth and seasoned with the final adjustment of salt and pepper. For more inspiration, see Healthy Chicken Pot Pie Soup (Dairy-Free, Whole30).

The available serving information is intentionally simple: the recipe specifies the amount produced and the portion size, but it does not provide garnishes, accompaniments, or alternate serving arrangements. Keeping the serving guidance centered on the 2-cup portion preserves the recipe’s defined yield without adding unsupported suggestions. For another recipe idea, explore Our High-Protein Marry Me Chicken Is A Real Meat-Cute.

For planning purposes, the 8-cup yield makes this a full-pot preparation rather than a single bowl. The portion information also gives a clear basis for reading the nutrition values, which are listed per 2-cup serving.

Frequently Asked Questions

What is the best way to prepare this soup?

Bring 5 cups of water to a boil, add the rinsed and drained split red lentils, and cook them uncovered over medium-low heat for 20 to 25 minutes, until they are falling apart. Add the crushed tomatoes, Italian herb seasoning, 1/4 teaspoon salt, and 1/8 teaspoon pepper. Simmer partially covered over low heat for 15 minutes, then puree until creamy-smooth and adjust the seasoning.

How do I know when the soup is ready?

The lentils are ready for the next stage when they are falling apart. After the tomatoes, herbs, salt, and pepper simmer for 15 minutes, puree the soup until creamy-smooth. Finish by adjusting salt and pepper to taste.

How long does the soup take to make?

The preparation time is 2 minutes, the cooking time is 40 minutes, and the total time is 42 minutes. The lentil stage takes 20 to 25 minutes, followed by a 15-minute simmer after the crushed tomatoes and herbs are added.

What should I know about the water?

The recipe uses 5 cups of water. Bring it to a boil in a large saucepan before adding the lentils.

What should I know about the lentils?

Use 1 cup of split red lentils, rinsed and drained. They cook first and should be falling apart before the crushed tomatoes and seasoning are added.

What should I know about the crushed tomatoes?

Use one 28-ounce can of crushed tomatoes. The ingredient guidance recommends a high-quality brand, such as Cento, and the tomatoes are added after the lentils have cooked.

What should I know about the Italian herb seasoning?

Use 1 tablespoon of Italian herb seasoning. It is added with the crushed tomatoes, salt, and pepper before the final low simmer.

How are the salt and pepper used?

Fine sea salt and freshly ground pepper are used in the soup. Begin with 1/4 teaspoon salt and 1/8 teaspoon pepper during the tomato simmer, then adjust both to taste after pureeing.

Nutrition

Nutrition per serving:

• servingSize: 2 cups (500 mL)

• serving size: 2 cups (500 mL)

• calories: 250 kcal

• carbohydrates: 44 g

• fiber: 16 g

• sugar: 4.5 g

• protein: 14.5 g

• sodium: 272 mg