Spanish Lentil Rice Soup: A Hearty One-Pot Supper Recipe

Spanish lentil rice soup is a hearty, Spanish-style one-pot dish of brown lentils, rice, vegetables, tomato, and smoky paprika simmered in broth. It takes cues from the varied lentil stews made across Spain, while rice makes this version especially filling and gives the broth a comforting, gently thick texture.

Ingredients

2 tablespoons (30 ml) extra-virgin olive oil
1 medium yellow onion, finely chopped, about 1 cup (150 g)
1 medium red bell pepper, seeded and chopped, about 1 cup (150 g)
1 medium carrot, peeled and diced, about 1 cup (130 g)
2 medium garlic cloves, finely chopped, about 2 teaspoons (6 g)
1 teaspoon (2 g) sweet or smoked Spanish paprika
1 cup (240 g) crushed tomatoes
1½ cups (285 g) brown or green lentils, sorted and rinsed
8 cups (1.9 L) low-sodium vegetable broth
1 dried bay leaf
1 teaspoon (6 g) fine salt, plus more to taste
½ teaspoon (1 g) black pepper
¾ cup (145 g) uncooked short- or medium-grain rice, rinsed and drained
1 tablespoon (15 ml) sherry vinegar or red wine vinegar
2 tablespoons (8 g) chopped fresh parsley, for serving
Up to 1 cup (240 ml) hot water or broth, for adjusting the soup if needed

Instructions

Prepare the vegetables and grains. Chop the onion, pepper, carrot, and garlic before you start cooking. Pick through the lentils for small stones or debris, then rinse them under cool water and drain. Rinse the rice in a fine-mesh strainer until the water runs mostly clear; this removes loose surface starch and helps the grains cook more evenly in the soup.
Build the vegetable base. Warm the olive oil in a large, heavy pot or Dutch oven over medium heat. Add the onion, bell pepper, and carrot, and cook for 6 minutes, stirring now and then, until the onion is translucent and the vegetables have started to soften. Stir in the garlic and paprika and cook for 1 minute, just until fragrant. Keep the heat moderate so the garlic and paprika do not scorch.
Add the lentils and simmer. Stir in the crushed tomatoes, rinsed lentils, broth, bay leaf, salt, and black pepper. Bring the pot to a steady simmer, which should take about 5 minutes; avoid a hard boil, which can break up the vegetables and make the lentils cook unevenly. Lower the heat, cover the pot with the lid slightly ajar, and simmer for 25 minutes. Stir once or twice, scraping the bottom of the pot, and make sure the soup is gently bubbling rather than boiling vigorously.
Cook the rice in the soup. Stir in the rinsed rice, cover the pot slightly ajar again, and simmer for 19 minutes. Stir every few minutes to keep the rice from settling and sticking. Check a few lentils and rice grains: both should be tender, but the lentils should still hold their shape. If they need more time, simmer in 2-minute increments, checking often. Add a splash of hot water or broth if the soup is getting thicker than you like; rice continues to absorb liquid as it cooks.
Season and finish. Remove the bay leaf. Stir in the vinegar and chopped parsley, then taste and adjust the salt and pepper. Let the soup stand off the heat for 2 minutes so the flavors settle. Serve hot, with extra broth or hot water at the table for anyone who prefers a looser bowl.

Tips

Choose lentils that hold their shape. Brown or green lentils are the best fit because they stay pleasantly firm through the long simmer. Red lentils soften much faster and can turn the soup thick and creamy; if using them, add them with the rice rather than at the beginning and expect a different texture.
Use paprika gently. Sweet or smoked Spanish paprika gives the soup its savory, smoky note. If Spanish paprika is not available, ordinary sweet paprika works well; a small pinch of smoked paprika can add smoke, but too much may overpower the vegetables. Do not fry paprika over high heat, because burnt paprika tastes bitter.
Keep an eye on the liquid. Rice absorbs broth while cooking and continues to swell as the soup stands. Stir regularly near the end, and keep hot broth or water nearby so you can thin the pot without slowing the simmer. Add liquid gradually; you can always loosen the soup, but it is harder to correct a watery bowl.
Salt in stages. Low-sodium broth leaves room to season at the end. If your broth is already salty, start with less salt than listed, then taste after the lentils and rice are tender. The vinegar is also important: it brightens the finished soup, so add it before deciding whether the bowl needs more salt.

Serving Suggestions

Serve the soup as a complete lunch or dinner, ladled into warm bowls while the rice is still tender. A simple green salad dressed with olive oil and vinegar makes a fresh contrast to the rich broth. Crusty bread is useful for soaking up the last spoonfuls, and a few lemon wedges offer a sharper, brighter finish for people who like extra acidity.

For a Spanish-inspired spread, pair the soup with olives, roasted vegetables, or a small plate of sautéed greens. Put chopped parsley and extra vinegar on the table rather than adding a lot of garnish to the pot; both are easy ways to adjust individual servings. If serving a crowd, keep the soup warm over very low heat and stir it occasionally, adding broth if it thickens while waiting.

Variations

Add chorizo: For a meatier Spanish-style variation, brown about 4 ounces (115 g) of sliced Spanish chorizo in the pot before adding the oil and vegetables. Spanish cured chorizo is usually ready to eat, but browning releases its paprika-seasoned oils into the soup. It is different from fresh Mexican-style chorizo, which must be cooked through; if using fresh ground chorizo, cook it until it reaches the USDA FSIS safe minimum internal temperature of 160°F (71°C), checked with a food thermometer. This variation is no longer vegetarian.

Make it vegetarian or vegan: The listed recipe is already vegan if you use vegetable broth and check that the broth contains no animal ingredients. A richer vegetable broth adds depth, while water can replace some broth if you prefer a lighter flavor.

Use a different grain: White short- or medium-grain rice gives a soft, slightly thickening texture. Long-grain rice tends to stay more separate. Brown rice takes substantially longer to cook, so cook it separately according to its package directions and stir it into the finished soup; otherwise, the lentils may become too soft while waiting for the rice.

Add greens: Stir in 2 cups (60 g) of chopped spinach during the final 2 minutes, or add 2 cups (120 g) chopped kale about 10 minutes before the soup is done. The leaves soften into the broth without changing the basic method much.

Use canned lentils: Drain and rinse about 3 cups (about 500 g) of canned lentils, then add them with the rice and reduce the rice simmer to its package timing, usually around 15 to 18 minutes. Since canned lentils are already cooked, adding them at the start would make them fall apart. Start with slightly less broth and add more as needed.

Storage and Reheating

Cool leftovers promptly and refrigerate them within 2 hours of cooking in shallow, covered containers. The soup keeps for 3 to 4 days in the refrigerator. Rice thickens the broth as it sits, so store a little extra broth separately if you want to loosen individual portions later. For longer storage, freeze the soup in airtight, freezer-safe containers for up to 3 months. The rice may be softer after thawing, but the soup remains useful for a quick meal.

Reheat a portion in a saucepan over medium-low heat, stirring often and adding water or broth until it reaches your preferred consistency. Heat leftovers to 165°F (74°C), checking with a food thermometer. For a microwave, cover the bowl loosely, stir halfway through heating, and check that the center is steaming hot and reaches 165°F (74°C). Refrigerate any reheated portion you do not finish promptly; avoid repeatedly warming and cooling the whole pot.

Frequently Asked Questions

Can I make Spanish lentil rice soup ahead?
Yes. The vegetables and lentils can be cooked ahead, but rice absorbs broth during storage and can become very soft. For the best texture, prepare the soup through the lentil-simmering step, cool and refrigerate it, then bring it back to a simmer and cook the rice shortly before serving. If the rice is already in the soup, add broth while reheating.

Do I need to soak the lentils first?
No. Brown and green lentils cook without soaking, and rinsing and sorting them is enough preparation. Soaking can shorten their cooking time, but it is unnecessary here and may make the recipe timing less predictable. If your lentils are unusually old, they can take longer to soften, so check tenderness before adding the rice.

Can I use brown rice instead of white rice?
You can, but brown rice usually needs much longer to cook than the lentils and white rice in this recipe. To prevent overcooked lentils, cook the brown rice separately and stir it into the soup before serving. Follow the package directions, since cooking times differ between varieties.

Why did my soup become so thick?
The rice continues to absorb liquid as it cooks and rests, and lentils also release starch into the broth. Stir in hot water or broth a little at a time until the soup is the consistency you want. If it is thickening during the meal, keep extra liquid warm and adjust each bowl as needed.

Can I make this without tomatoes?
Yes. Omit the crushed tomatoes and add about ½ cup (120 ml) extra broth or water. The soup will taste less tangy and have a lighter, less rounded broth, so taste it at the end and add a little extra vinegar if it needs brightness.

What kind of rice works best?
Short- or medium-grain white rice makes the broth gently creamy as its starch cooks out, while long-grain rice stays more distinct. Either works; choose based on the texture you want. Rinse the rice first and begin checking for tenderness at the stated cooking time, since brands and varieties can differ slightly.

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Safety notes: safe minimum internal temperatures from USDA FSIS; raw and undercooked fish guidance from the U.S. FDA. Food safety notes

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