Italian Herb-Infused Lentil Soup with Parmesan Croutons
This hearty lentil soup simmers with Italian herbs and vegetables, finished with crunchy Parmesan croutons for an inviting and comforting bowl. This italian-inspired soups (vegetarian) ready in about 55 minutes pairs dry brown lentils, olive oil, large carrot, diced for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 320 calories and feeds 4, so it slots cleanly into a weekly meal plan and pairs well with a quick salad or grain on the side. Tap "Plan a meal with the AI" below to drop this recipe into your week and send the ingredients straight to Instacart. Nutrition values are approximate, calculated from USDA FoodData Central (fdc.nal.usda.gov) — verify against ingredient labels for any health-driven dietary plan.
Ingredients
- 1 cup dry brown lentils
- 3 tbsp olive oil
- 1 large carrot, diced
- 2 celery stalks, diced
- 1 medium yellow onion, diced
- 4 garlic cloves, minced
- 1 can (14.5 oz) diced tomatoes (canned)
- 6 cups vegetable broth
- 1 tsp dried oregano
- 1 tsp dried thyme
- 1 bay leaf
- 1 tsp salt
- 1/2 tsp black pepper
- 4 baguette slices
- 1/2 cup grated Parmesan cheese
- 2 tbsp fresh parsley, chopped
Instructions
- Step 1: Rinse 1 cup dry brown lentils under cold water and set aside. In a large pot, heat 3 tbsp olive oil over medium heat. Add 1 diced yellow onion, 1 large diced carrot, 2 diced celery stalks, and 4 minced garlic cloves. Sauté for 6-8 minutes until the vegetables soften and become fragrant.
- Step 2: Add the 1 cup rinsed lentils, 1 can (14.5 oz) diced tomatoes with juice, 6 cups vegetable broth, 1 tsp dried oregano, 1 tsp dried thyme, 1 bay leaf, 1 tsp salt, and 1/2 tsp black pepper to the pot. Stir well and bring to a boil.
- Step 3: Reduce heat to low, cover partially, and simmer the soup for 30-35 minutes until lentils are tender but not mushy.
- Step 4: While the soup simmers, preheat oven to 375°F (190°C). Place 4 baguette slices on a baking sheet and sprinkle evenly with 1/2 cup grated Parmesan cheese. Bake for 8-10 minutes until cheese is melted and edges are golden and crisp.
- Step 5: Remove bay leaf from the soup, adjust seasoning if needed. Ladle soup into bowls and top each serving with a Parmesan crouton and 2 tbsp chopped fresh parsley.
Equipment for this recipe
Top-rated tools to make this recipe successfully.
Frequently asked questions
How long does Italian Herb-Infused Lentil Soup with Parmesan Croutons take to make?
Total time is about 55 minutes (15 min prep + 40 min cook). Most home cooks find this fits comfortably into a weeknight; double the batch on Sunday for two dinners.
How do I store leftover Italian Herb-Infused Lentil Soup with Parmesan Croutons?
Cool to room temperature within 2 hours, then store in an airtight container in the fridge for up to 4 days. Reheat covered in a 350°F oven for 10-12 minutes, or microwave at 70% power in 60-second bursts to keep dry brown lentils from drying out.
Can I substitute ingredients in Italian Herb-Infused Lentil Soup with Parmesan Croutons?
Yes — most ingredients in this recipe have flexible swaps. For oil, use any neutral high-smoke-point oil (avocado, grapeseed, refined coconut). For aromatics, dried herbs at ⅓ the volume of fresh work in a pinch. The full ingredient list is shoppable on Instacart so you can see substitutes in real time.
How do I scale Italian Herb-Infused Lentil Soup with Parmesan Croutons for a different number of people?
The recipe is written for 4 servings. Multiply each ingredient by (your serving target / 4). Cook time stays roughly the same up to 2x; for 3-4x batches, switch from a skillet to a sheet pan or stockpot so the food isn't crowded — overcrowding steams instead of browns.
Is Italian Herb-Infused Lentil Soup with Parmesan Croutons vegetarian?
Yes — this recipe is tagged vegetarian based on its ingredient list. Always cross-check labels for packaged ingredients (sauces, broths, condiments) since formulations vary by brand.
