Cod with Mushroom and Spinach Sauce Recipe

Cod with Mushroom and Spinach Sauce

Cod with mushroom and spinach sauce is one of my favourite weeknight meals. It’s quick, easy and, although there is cream in this recipe it’s still pretty healthy with the spinach and mushrooms. It’s also seriously delicious. The recipe multiplies easily so whether it’s dinner à deux with chilled bubbles, a kitchen supper for four with kid friendly mocktails or a dinner party for six with a nice bottle of chilled white wine, you’ll have supper on the table in under half an hour.

I can get lovely sustainably fished cod loins locally but if sustainable cod isn’t available where you are, you can use any filleted white fish. Don’t like fish? Use roast chicken breasts instead.

I almost always serve this with frozen organic peas. If you have very hearty appetites round the table try adding crushed new potatoes or some Basmati rice as well.

Cod with Mushroom and Spinach Sauce

Cod with Mushroom and Spinach Sauce Recipe

Cod in Mushroom Sauce Collage 1

After putting the fish in the oven, simply fry up the onions and mushrooms in a large frying pan, sprinkle with some flour and then stir in and cook for a couple of minutes, stirring constantly.

Cod in Mushroom and Spinach Sauce Collage

Stir in the stock a bit at a time allowing the sauce to thicken after each addition. Add the spinach and allow to wilt.

Cod with Spinach and Mushroom Collage

Gradually stir in the cream, a bit at a time, until a smooth, pourable consistency is reached. Add a bit more stock if necessary, taste for seasoning and serve the Mushroom and Spinach Sauce over the cooked cod.

Cod with Mushrooms and Spinach Sauce really is that easy! I hope you enjoy this recipe as much as my family and friends do.

Printable Recipe

Cod with Mushroom and Spinach Sauce
Serves: Serves 2
  • 1 teaspoon mild vegetable oil
  • 2 cod loins or fillets, preferably skinless and boneless
  • 1 tablespoon butter, unsalted for preference, divided
  • 1 large onion, finely chopped
  • 1 cup sliced white mushrooms
  • 2 generous tablespoons of plain (all purpose) flour
  • 2 to 3 cups fresh spinach (small, tender leaves if possible)
  • ½ to ¾ cup fish or chicken stock
  • ¼ cup single (light) cream or half and half
  • salt and pepper to taste
  1. Preheat the oven to 350°F (175°C).
  2. Lightly oil two pieces of aluminium foil and lay each piece of fish in the middle of one of the pieces of foil.
  3. Seal the foil into parcels and place on a baking tray.
  4. Bake for 15 to 20 minutes depending on the thickness of the fish. Fish is done when it is opaque and flakes easily with a fork.
  5. Remove the fish from the oven and keep sealed in the foil packets.
  6. Meanwhile, while the fish is cooking, melt the butter over medium heat in a large frying pan.
  7. Add the onions and cook until they begin to soften.
  8. Add the mushrooms and cook until they begin to pick up a bit of colour.
  9. Sprinkle the flour over the onions and mushrooms and stir in.
  10. Cook for a minute or two, stirring constantly.
  11. Add half a cup of the chicken or fish stock, a bit at a time, stirring after each addition and allowing the sauce to thicken.
  12. Add the spinach and stir through the sauce.
  13. As the spinach begins to wilt, start to add the cream, a bit at a time, stirring after each addition.
  14. If the sauce becomes to thick, add a bit more chicken or fish stock.
  15. Taste the sauce for seasoning and add salt and pepper if necessary.
  16. Remove the fish from the foil packages, place on a plate and serve the spinach and mushroom sauce over top.

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Article by April Harris

April has written 1291 great articles for us.
April is a writer, recipe developer, frequent traveller and blogger sharing travel, food, and style. Based in the south of England, April is a British Canadian who is passionate about family, hearth and home, healthy living (with treats!) and the transformative power of travel.
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  1. I believe the sauce on this fish would get the seafood haters in my house to eat this cod for sure.

  2. April, this looks absolutely delicious. I don’t know why I never think to put mushrooms with fish, but I can’t wait to give this a try.

  3. We would just love your Cod with Mushroom and Spinach Sauce, it looks awesome! Thanks so much for sharing your great recipe with Full Plate Thursday and enjoy your Thanksgiving week!
    Come Back Soon
    Miz Helen

  4. This looks awesome, April! I’ve never thought of pairing mushroom sauce with fish, but it looks heavenly. Thanks for sharing at Simple Supper Tuesday.

  5. Spinach. Creamy sauce. Mushrooms. You’ve taken some of my favorite things and put them together in one super dish. Thank you for sharing. Next time I cook fish, I will have to try this!

  6. I love how versatile this recipe is April… super comfort food. Give me anything with cream and mushrooms and I’m in heaven. Thanks for sharing this on foodie friday.

  7. Hi April,
    Just wanted to let you know that your recipe is being featured on Foodie Friday today. I will be pinning and tweeting it too this week.

  8. We recently started enjoying cod so I am looking for interesting new dishes to try. Your looks so easy and good! Plus I love how versatile it is. I can definitely imagine serving it for just my husband and I or for Sunday supper with company.

  9. The mushrooms and spinach must taste heavenly ! Looks delicious, April!

  10. Now this is certainly one way you could get me to eat spinach! I’m always looking for ways to incorporate it (my words.. disguise it) with other things I DO LIKE…. simply because I know I should eat it… this is one recipe I will love! It looks really yummy April!

  11. What a stunning recipe!!! My husband would love this as well!!!

  12. This is such a delicious, creamy sauce! I love mushrooms too!

  13. I just love this dish April, especially because cod is one of my favorite types of fish and I am always looking for new ways to serve it!

  14. This looks so good! I love mushrooms, and would love this for dinner tonight. Can’t wait to try this. I pinned it for later!

  15. How delicious! I love the combo of fish spinach, mushrooms and cream. I can’t wait to make your recipe, April. Thank you for sharing. Pinned and tweeted!

  16. Hi just fancied something a bit different ,and this was wonderful thank you x

  17. What a delicious looking dinner! An so good for you! I’m all over it.

  18. Wow! This looks so healthy and perfect for a weeknight dinner. I’ll have to add this to our menu this week!

  19. Wow, those mushrooms and fresh spinach look fantastic! This looks like a perfect summer dinner, too!

  20. Looks delicious! I love spinach!!!

  21. I’m always looking for more excuses to eat fish. This sounds like a good one.

  22. April, I’m not a fish person, but I am going to love that sauce on a roasted chicken breast with a side of mashed potatoes and frozen organic peas (a huge fan of those!). I can tell I’m not going to be happy until I have it — must pick up some spinach!

  23. April,
    This looks like a meal I’m going tp have to try! Very thankful that our local farmers market carries fresh fish!

  24. Anything is better with spinach and mushroom sauce! Tofu would be another option for the protein. I would slice it 1/4″ thick and bake on a well-greased pan to give it some texture so it wouldn’t be too mushy under the sauce.

    • What a great idea, Becca! Tofu would be the perfect way for vegetarians – or folks trying to cut back on meat like we are – to enjoy this yummy sauce!

  25. This looks SO delicious! YUM!

    I would love for you to add this to my Recipes and Crafts Facebook Group:

    Thanks for joining Cooking and Crafting with J & J!

  26. Hello April, wow this looks and sounds so good. This is a recipe that I will try sometime and pinned. Thanks for sharing at Cooking and Crafting with J & J. 🙂

  27. We are happy to inform you that we featured this recipe at our Monday Cooking and Crafting with J & J! We hope to see you again this week. 🙂

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