Tuna and Vegetable Soup
A light, brothy soup packed with flaky tuna, tender mixed vegetables, and a gentle hint of herbs. Ready in under 30 minutes, it's the perfect quick weeknight dinner that feels nourishing and satisfying without being heavy.
For 4 servings
- prep
Prep the vegetables and tuna.
1.Dice the onion, carrot, celery, and potato into small even cubes (about ½ inch).2.Mince the garlic cloves finely.3.Dice the tomatoes.4.Drain the canned tuna and flake it gently with a fork. - saute · ~6 min
Sauté the aromatics.
1.Heat olive oil in a large pot over medium heat until shimmering.2.Add diced onion, carrot, and celery. Cook until onion turns translucent (about 5 minutes).3.Add minced garlic and sauté until fragrant (about 30 seconds).TIPStir frequently so the garlic doesn't burn — it turns bitter fast. - simmer · ~15 min
Simmer the soup base.
1.Add the cubed potato, diced tomatoes, bay leaf, and dried thyme to the pot.2.Pour in the water and add salt. Stir well to combine.3.Bring the soup to a boil, then immediately reduce to a gentle simmer.4.Cover and simmer until the potatoes are fork-tender (about 15 minutes).TIPCut the potato into uniform small cubes so they cook through at the same rate. - simmer · ~4 min
Add tuna, peas, and finish the soup.
1.Gently stir in the flaked tuna and frozen green peas.2.Season with black pepper.3.Simmer uncovered for another 3 to 4 minutes until the peas are bright green and tuna is heated through.TIPAdd the tuna last and avoid over-stirring — you want nice flakes in the final bowl, not mush. - garnish
Finish with lemon juice and fresh parsley.
1.Remove the pot from heat. Fish out and discard the bay leaf.2.Stir in the fresh lemon juice.3.Ladle into bowls, top with chopped parsley, and serve hot.TIPThe lemon juice added off heat stays bright and zesty — heat dulls fresh citrus.
What to keep in mind.
6 tips from the recipe — small details that make a real difference to the final dish.
- 1Cube all vegetables uniformly so they cook evenly and look tidy in the bowl.
- 2Drain the tuna well and flake it gently with a fork to keep distinct chunks.
- 3Don't skip sautéing the aromatics — it builds a savory depth that plain simmering won't give.
- 4Add the tuna and peas in the last few minutes to avoid overcooking and keep the tuna flaky.
- 5Stir in the lemon juice off the heat so its bright acidity doesn't cook away.
- 6This soup thickens slightly as it sits; add a splash of water when reheating for the original brothy texture.
Adapt it for your goals.
High-protein
Swap the single can of tuna for two cans (400 g total) and add a cup of cooked white beans or chickpeas for extra protein and staying power.
low carb / ketoLow-carb / keto
Replace the potato with 1 cup of diced zucchini or cauliflower florets to reduce carbs while keeping a similar tender texture.
spicy kickSpicy kick
Add 1/2 teaspoon red pepper flakes or a chopped fresh chili with the garlic for gentle heat that complements the tuna and tomato base.
herb swapHerb swap
Use dried oregano or basil instead of thyme, or stir in a handful of fresh spinach with the peas for extra green nutrients.
grain addedGrain-added
Simmer 1/2 cup of small pasta (like ditalini or orzo) or quick-cooking rice with the potatoes to make the soup more substantial.
Why this is on our healthy list.
Lean Protein Source
Canned tuna in water provides high-quality, low-fat protein that helps build and repair muscles without adding extra calories.
Rich in Vitamin A
Carrots and tomatoes supply beta-carotene, which the body converts into vitamin A for healthy vision and immune function.
Good Source of Fiber
Mixed vegetables like carrots, celery, peas, and potato contribute dietary fiber for steady digestion and longer-lasting fullness.
Low in Saturated Fat
This soup uses only a tablespoon of olive oil and relies on water as its base, making it a heart-friendly, low-fat meal option.
Frequently asked questions
Yes, but drain it well and reduce the olive oil in the recipe by half to avoid an overly oily soup.



