Tomato, lentils, herbs, and pasta simmer in one pot for a budget-friendly dinner with plenty of plant-based protein.
One-Pot Lentil Tomato Pasta Recipe
Prep: 12 minutes Cook: 23 minutes Total: 35 minutes Yield: 6 servings
Ingredients
- 1 tablespoon olive oil
- 1 medium yellow onion, diced
- 3 garlic cloves, minced
- 1 teaspoon dried Italian seasoning
- 1/4 teaspoon red pepper flakes, optional
- 1 can (28 ounces) crushed tomatoes
- 4 cups low-sodium vegetable broth
- 12 ounces short pasta such as penne or rotini
- 1 can (15 ounces) brown lentils, rinsed and drained
- 3/4 teaspoon kosher salt
- 3 cups baby spinach
- 1 tablespoon balsamic vinegar
- 1/3 cup grated Parmesan, optional
Instructions
- Heat olive oil in a Dutch oven over medium. Cook onion for 5 minutes until softened. Add garlic, Italian seasoning, and red pepper flakes; stir for 30 seconds.
- Add crushed tomatoes, broth, pasta, lentils, and salt. Bring to a steady simmer.
- Cook uncovered for 12 to 15 minutes, stirring often, until the pasta is tender. Lower the heat if the bottom begins to catch, and add a splash of water if needed.
- Stir in spinach until wilted, then add balsamic vinegar. Taste and adjust seasoning.
- Rest for 3 minutes to thicken. Serve with Parmesan if desired.
Why this recipe works
The pasta releases starch directly into the tomato broth, creating a naturally silky sauce. Canned lentils add protein without extending the cooking time.
Helpful tips
- Stir more frequently during the final 5 minutes when the sauce thickens.
- Different pasta shapes absorb liquid differently; keep hot water nearby.
- Use nutritional yeast instead of Parmesan for a dairy-free finish.
Storage and reheating
Refrigerate in a covered container for up to 4 days. The pasta absorbs sauce as it rests, so add broth or water when reheating to 165°F.
Food-safety note: Refrigerate leftovers within 2 hours and reheat them to 165°F.
Estimated nutrition
Per serving: 430 calories, 18 g protein, 74 g carbohydrates, and 8 g fat. Estimates vary by brands and portions.
Helpful kitchen gear
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