Tuna and Tomato Soup

Featured in: Weeknight Dinners

This hearty Italian-inspired soup combines tender canned tuna with ripe tomatoes, onions, carrots, and celery for a satisfying meal. Aromatics like garlic, oregano, and basil create depth, while red pepper flakes add optional warmth. The broth comes together in just 25 minutes, making it perfect for busy weeknights. Serve with crusty bread for a complete dinner that's both nourishing and full of Mediterranean flavors.

Updated on Wed, 28 Jan 2026 16:55:00 GMT
A bowl of homemade Italian-inspired Tuna and Tomato Soup garnished with fresh parsley and served beside crusty bread. Pin it
A bowl of homemade Italian-inspired Tuna and Tomato Soup garnished with fresh parsley and served beside crusty bread. | purposepan.com

The first time I made tuna and tomato soup, it was a chilly autumn afternoon and I was staring at a nearly-empty pantry wondering what to make for lunch. I spotted a lonely can of tuna and some tomatoes, and remembered my Italian neighbor mentioning her quick tuna soup. With a bit of rummaging, I found enough vegetables to make it work, and within half an hour, my kitchen was filled with an aroma that transported me straight to the Mediterranean coast. What started as a pantry-rescue mission became one of my most reliable weeknight recipes.

Last winter when my friend Sofia was feeling under the weather, I packed this soup in a thermos and brought it to her doorstep. When she called the next day, she didnt thank me for the soup - she demanded the recipe and swore it had healing powers beyond any medicine. The combination of gentle heat from the red pepper flakes and the soothing broth had cleared her sinuses, while the protein from the tuna gave her enough energy to finally get out of bed. Now whenever anyone in our circle falls ill, this soup mysteriously appears on their doorstep.

Ingredients

  • Canned tuna in olive oil: The olive oil from the tuna adds incredible richness, so drain but dont rinse it completely - that residual oil carries so much flavor.
  • Diced tomatoes: Fire-roasted varieties add an extra layer of flavor, but regular ones work beautifully too - Ive made it both ways depending on whats in my pantry.
  • Mirepoix (onion, carrot, celery): This trio creates the foundation of flavor, and Ive found that taking the extra minute to dice them uniformly helps them cook evenly.
  • Red pepper flakes: Start with less than you think you need - you can always add more later, but Ive learned that the heat intensifies as the soup sits.
  • Fresh herbs: The difference between using dried herbs during cooking and finishing with fresh ones is night and day - its worth keeping a small pot of basil or parsley on your windowsill just for this.

Instructions

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Build the flavor base:
Heat the olive oil until it shimmers, then add your diced onion, carrot, and celery. Listen for that gentle sizzle that tells you the vegetables are releasing their flavors without burning.
Add the aromatics:
When the vegetables have softened and the onions look translucent, stir in the garlic. Youll know its ready when your kitchen fills with that mouthwatering aroma that makes everyone ask whats cooking.
Concentrate the tomato flavor:
Add the tomato paste and let it cook briefly. Watch how it darkens slightly and sticks to the bottom of the pan - thats caramelization happening, which deepens the flavor tremendously.
Create the broth base:
Pour in those diced tomatoes and listen to the satisfying sizzle as they hit the hot pan. Add the vegetable broth and herbs, stirring to incorporate all those beautiful flavors from the bottom of the pot.
Simmer to perfection:
Let everything bubble gently until the vegetables yield easily when pierced with a fork. The broth will reduce slightly, concentrating all those wonderful flavors.
Introduce the star ingredient:
Gently fold in the flaked tuna, being careful not to break it up too much. You want those distinct pieces of tuna to shine through in each spoonful.
Final touches:
Taste and adjust with salt and pepper until it sings. Remember that flavors meld and intensify as the soup sits, so be mindful not to over-season.
Serve with love:
Ladle the steaming soup into bowls, scatter fresh herbs on top, and serve with crusty bread for dipping. The contrast between the hot soup and the cool herbs is pure magic.
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Steam rises from this easy Tuna and Tomato Soup, highlighting tender tuna flakes and vibrant diced tomatoes in a rich broth. Pin it
Steam rises from this easy Tuna and Tomato Soup, highlighting tender tuna flakes and vibrant diced tomatoes in a rich broth. | purposepan.com

When my nephew came to stay with me during his college break, he wrinkled his nose at the mention of fish soup. But after one reluctant spoonful, his eyes widened, and he proceeded to demolish three bowls in succession. He confessed hed never had tuna outside of sandwiches before and had no idea it could taste so complex and satisfying in a soup. That evening, I taught him how to make it himself, and now he sends me photos whenever he makes it for study group nights at his apartment.

Making It Your Own

This recipe welcomes personal touches like few others Ive encountered. One rainy evening when I was missing Italy, I tossed in a handful of capers and a squeeze of lemon, which brightened everything up beautifully. Another time, I added a small tin of anchovies with the garlic, which melted into the background but added incredible depth. My neighbor stirs in a splash of white wine after the garlic, while my sister swears by adding a bay leaf to the simmering broth. Each variation tells a different story, yet somehow remains true to the originals spirit.

Storage and Reheating

Like many soups, this one improves with time as the flavors continue to develop and meld together. Ive discovered that storing it in glass containers rather than plastic seems to preserve the nuances better, especially the delicate flavor of the tuna. When reheating, doing so gently on the stovetop rather than in the microwave maintains the textures - particularly those tender flakes of fish that can toughen when heated too aggressively. Ive stretched this soup to last three days in the refrigerator, and each day it seemed to reveal new layers of flavor Id missed before.

Serving Suggestions

While this soup is certainly substantial enough to stand alone, Ive found a few accompaniments that elevate the experience into something truly special. My Italian friend taught me to rub a garlic clove on toasted bread, drizzle it with good olive oil, and serve it alongside for dipping - the contrast between the crisp bread and the savory soup creates perfect balance. A simple green salad dressed with lemon juice and olive oil offers a refreshing counterpoint to the rich soup, while a glass of chilled Pinot Grigio complements the flavors beautifully for an evening meal.

  • For a complete meal, serve smaller portions as a starter before a simple main course of roasted chicken or a vegetable frittata.
  • If serving for lunch, a handful of mixed olives and some sliced fennel dressed with olive oil make lovely accompaniments.
  • Remember to have extra fresh herbs available at the table so everyone can add their own final flourish.
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A close-up of Tuna and Tomato Soup in a rustic bowl, topped with fresh basil and red pepper flakes for extra flavor. Pin it
A close-up of Tuna and Tomato Soup in a rustic bowl, topped with fresh basil and red pepper flakes for extra flavor. | purposepan.com

This tuna and tomato soup has taught me that sometimes the humblest ingredients can create the most memorable meals. Whether youre cooking to nourish yourself or someone you care about, this soup carries the simple magic of comfort in every spoonful.

Recipe FAQs

Is this soup freezer-friendly?

Yes, this soup freezes well for up to 3 months. Cool completely before transferring to airtight containers. Thaw overnight in the refrigerator and reheat gently on the stove.

Can I use fresh tuna instead of canned?

You can use fresh tuna, but add it during the last 3-4 minutes of cooking to prevent overcooking. Grilled or seared tuna steaks cut into chunks work beautifully.

What other vegetables can I add?

Zucchini, bell peppers, or spinach make excellent additions. Add harder vegetables like zucchini with the tomatoes, and stir in leafy greens like spinach during the last 2 minutes.

Can I make this soup thicker?

Yes, you can add small pasta shapes like shells or ditalini during the simmering stage, or blend a portion of the soup before adding tuna for a creamier texture.

What's the best way to reheat leftovers?

Reheat gently on the stove over low-medium heat, stirring occasionally. Avoid boiling to prevent the tuna from becoming tough. Add a splash of broth if needed.

Tuna and Tomato Soup

Flavorful Italian-style soup with tender tuna, tomatoes, and vegetables. Ready in 25 minutes.

Prep time
10 minutes
Cook time
15 minutes
Total duration
25 minutes
Author Amelia Cook


Skill Level Easy

Cuisine Italian-Inspired

Portions 4 Serving size

Diet Information No Dairy, No Gluten

What You Need

Seafood

01 1 can (5 oz) tuna in olive oil, drained and flaked

Vegetables

01 1 medium onion, finely chopped
02 2 cloves garlic, minced
03 1 medium carrot, diced
04 1 celery stalk, diced
05 1 can (14 oz) diced tomatoes
06 2 cups vegetable broth
07 1 tbsp tomato paste

Herbs & Seasonings

01 1 tsp dried oregano
02 1 tsp dried basil
03 1/4 tsp crushed red pepper flakes
04 Salt and black pepper to taste

Pantry

01 2 tbsp olive oil

Garnish

01 2 tbsp chopped fresh parsley or basil
02 Crusty bread for serving

Step-by-Step Guide

Step 01

Sauté Aromatics: Heat olive oil in a large saucepan over medium heat. Add onion, carrot, and celery. Sauté for 5 minutes until softened.

Step 02

Build Flavor Base: Stir in minced garlic and cook for 1 minute until fragrant.

Step 03

Toast Tomato Paste: Add tomato paste and cook for 1 minute, stirring continuously.

Step 04

Combine Liquids and Seasonings: Pour in diced tomatoes and vegetable broth. Add oregano, basil, and red pepper flakes. Stir to combine thoroughly.

Step 05

Simmer Vegetables: Bring soup to a gentle boil, then reduce heat and simmer for 8 to 10 minutes until vegetables are tender.

Step 06

Incorporate Tuna: Add flaked tuna and simmer for 2 to 3 minutes to heat through.

Step 07

Season to Taste: Taste soup and adjust seasoning with salt and black pepper as needed.

Step 08

Serve: Ladle into bowls, garnish with fresh parsley or basil, and serve with crusty bread.

What You'll Need

  • Large saucepan
  • Wooden spoon
  • Chef's knife
  • Cutting board
  • Ladle

Allergy List

Review all items for allergens and talk to a medical expert if you're unsure.
  • Contains fish (tuna)
  • Verify broth and bread labels for potential gluten contamination

Nutrition details (per portion)

Nutrition details are just for your reference and shouldn't substitute a medical consultation.
  • Calories: 180
  • Fat content: 7 grams
  • Carbohydrates: 16 grams
  • Protein: 13 grams