With simple and affordable ingredients, this delicious one-pot mackerel soup will get dinner on the table in just 30 minutes. If you’ve ever been hesitant to try canned fish, this soup will win you over!

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Mackerel Soup (with Canned Mackerel)

Once our family started to abstain from meat on Fridays, we realized it was fish, eggs, or beans for protein. And while we love our eggs and beans, we wanted to expand our options.

To be entirely honest, I’ve never been a huge fan of fish. I know all of the amazing health benefits, particularly from the omega-3s, but it’s expensive and hard to prepare well. However, with the new Friday restrictions, I was determined to find a way to eat more fish.

Luckily, canned fish is the perfect solution. It’s pre-cooked, which will save you time – no cooking or chopping required. And at less than $4 for a 15oz can, it is significantly cheaper than most fresh or frozen options.

Better yet, it is actually more nutritious because it is canned with the skin and bones! While it might sound off-putting, the canning process softens them to the point that they are barely noticeable. Extra minerals and collagen? Sign me up!

A bowl of mackerel soup topped with parsley with a side of sourdough bread, with a blue napkin in the background

What does mackerel soup taste like?

I keep my mackerel soup simple, with a basic mirepoix (onion, carrots, celery), garlic, and tomato providing the bulk of the flavor, aside from the fish. I add a touch of lemon juice and parsley to brighten it up and some red pepper flakes to bring the heat.

My husband affectionately calls it “peasant food” – simple, hearty, and delicious!

Is canned mackerel soup fishy?

While it does have a slightly “fishy” flavor, it is largely masked by the brightness of the lemon, parsley, and tomato and the hint of heat from the red pepper flakes (or cayenne, when we have them from our garden). I often find things that are “fishy” to be rather off-putting, but this is one way that I actually really enjoy eating it.

If you can’t stand the taste of fish, canned mackerel may not be for you. However, you could substitute with canned tuna or canned salmon, as I find that those are often less fishy than mackerel.

What are the health benefits of canned mackerel soup?

Mackerel is a great source of omega-3 fatty acids, which are anti-inflammatory and supportive of brain function and cardiovascular health. On a personal note, I’ve noticed much less “mom-brain”/brain-fog since increasing my omega-3 consumption!

It’s also a great source of vitamin B12, vitamin D, and selenium – all essential nutrients (particularly for pregnant and breastfeeding moms) that many Americans are deficient in. Selenium also binds mercury, which makes the already-low levels of mercury in mackerel even less worrisome.

A close-up of a pot of mackerel soup simmering on the stove

Does canned mackerel have mercury? Is it safe while pregnant or breastfeeding?

Canned mackerel (often chub mackerel) is very low in mercury, making it a great choice for pregnant and breastfeeding moms. It can be tough to get enough omega-3s and selenium when restricting fish for fear of mercury – canned mackerel, canned salmon, and sardines are all very safe options. Canned chunk light tuna has some mercury, so that is best eaten in moderation.

When should I serve mackerel soup?

Mackerel soup is good any time, but it is particularly welcome in the colder months. Now that fall has really settled in, I have this recipe in our regular rotation!

For Catholics and other Christians who practice abstinence from meat on Fridays, the vigils of major feasts, and/or during the seasons of Lent and Advent, canned mackerel soup is a great option that is still high in bio-available protein.

Mackerel soup is also a great meal for the feasts of the fisherman apostles – St. Andrew, St. Peter, St. John the Evangelist, and particularly St. James, who is also the patron saint of Spain!

Does this mackerel soup make good leftovers?

Yes, these leftovers keep well in the fridge for up to 3 to 4 days. I find that they are a bit fishier, but a splash of lemon juice helps to minimize that. It’s also great served with a fried egg or two on top – a breakfast of champions!

Instead of making this soup and freezing it, I would recommend prepping all the veggies and seasonings. Freeze everything but the canned goods (which don’t need to take up precious freezer space), then throw it in the pot when you want it for a quick and easy dinner.

A bowl of mackerel soup topped with parsley with a side of sourdough bread, with a blue napkin in the background

Ingredients

  • 2 tbsp butter – can also use olive oil, tallow, or other healthy fat.
  • 3 cloves garlic, minced
  • 3 sticks celery, chopped
  • 3 carrots, chopped
  • 2 medium onions, chopped
  • 4 cups chicken bone broth
  • 6 oz tomato paste
  • 2 15oz cans mackerel
  • 2 tbsp lemon juice
  • 1/4 cup chopped fresh parsley – or about 1 tbsp dried parsley
  • 1 tsp red pepper flakes – or 1 fresh cayenne pepper, if you have easy access to one. We grew them in our garden last summer and they will certainly be one we grow every year (easy, low maintenance, delicious, and versatile)!
  • Salt, to taste – I typically don’t need to add any, but it will depend on your broth. The canned mackerel is already fairly salty, so if you have a well-salted broth, you may not need to add any either. Just taste it at the end – if it’s bland, add salt until the flavors pop!
Mackerel soup ingredients (labeled)

Directions

Step 1: Melt butter in a large pot, then sauté garlic, onions, carrots, celery, and fresh pepper (if using) for 2-3 minutes, until softened.

Sauteing diced onions, carrots, and celery in a pot on the stove

Step 2: Add tomato paste and chicken broth. Stir and bring to a boil for 2 minutes.

Tomato paste added to a soup simmering on the stove

Step 3: Add the mackerel, breaking it up as you stir it into the soup. Return to a boil, then lower heat to simmer.

Adding flaked canned mackerel to a pot of soup that is simmering on a stove

Step 4: Add lemon juice, parsley, and red pepper flakes, then stir to combine.

Adding parsley, lemon juice, and red pepper flakes to a pot of mackerel soup simmering on the stove

Step 5: Simmer 10 minutes. Taste, add salt (if needed – depends on your broth), then serve!

A pot of mackerel soup simmering on the stove

Equipment

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A close-up of a bowl of mackerel soup with a side of sourdough bread

Mackerel Soup (with Canned Mackerel)

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With simple and affordable ingredients, this delicious one-pot mackerel soup will get dinner on the table in just 30 minutes. If you’ve ever been hesitant to try canned fish, this soup will win you over!

  • Total Time: 30 minutes
  • Yield: 4 servings

Ingredients

  • 2 tbsp butter
  • 3 cloves garlic, minced
  • 3 sticks celery, chopped
  • 3 carrots, chopped
  • 2 medium onions, chopped
  • 4 cups chicken bone broth
  • 6 oz tomato paste
  • 2 15oz cans mackerel
  • 2 tbsp lemon juice
  • 1/4 cup chopped fresh parsley (or about 1 tbsp dried parsley)
  • 1 tsp red pepper flakes (or 1 fresh cayenne pepper)
  • Salt, to taste

Instructions

  1. Melt butter in a large pot, then sauté garlic, onions, carrots, celery, and fresh pepper (if using) for 2-3 minutes, until softened.
  2. Add tomato paste and chicken broth. Stir and bring to a boil for 2 minutes.
  3. Add the mackerel, breaking it up as you stir it into the soup. Return to a boil, then lower heat to simmer.
  4. Add lemon juice, parsley, and red pepper flakes, then stir to combine.
  5. Simmer 10 minutes. Taste, add salt (if needed – depends on your broth), then serve!

Notes

  • Serve with rice or some crusty sourdough bread to mop up every last drop of broth!

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I’m Alyssa

A woman smiling in her kitchen, wearing an apron and holding a whisk

I’m so glad you’re here! As a wife, mama, and follower of Christ, I love cooking nutritious food from scratch. Here we celebrate the good, the true, and the beautiful in food, family, and faith. Follow me for easy, real food recipes for the practical home cook on a budget and some occasional musings about homemaking and liturgical living.

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