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    Home » Main Dishes

    Keto Fish Pie

    Published: Jan 28, 2020 · Updated: Mar 9, 2023 by Angela Coleby · This post may contain affiliate links · This blog generates income via ads ·

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    Gluten FreeNut FreeEgg FreeLow CarbKeto

    This keto fish pie is an easy dinner recipe and pure comfort food. White fish, salmon and prawns are served in a creamy cheese sauce and topped with a cheesy cauliflower mash.

    Fish pie is a classic British recipe and use mashed potato for the topping. To make this a low carb fish recipe, the versatile cauliflower is used instead. The creamy sauce uses cream cheese for a low carb option too.

    keto fish pie

    The Chief Taster loved this keto fish pie so much on the first bake that despite declaring he was full, he dived in for a second helping. Which led to further declarations of a full stomach. The dish went immediately on the repeat request menu and leftovers (the small amount that was not devoured in the first serving) were enjoyed for lunch the next day.

    This post may contain affiliate links. Please read my disclosure policy for more information.

    Jump to:
    • Ingredients
    • How to Make a Keto Fish Pie
    • Baking Tips
    • Variations
    • Storage
    • What to serve with keto fish pie
    • MORE KETO FISH & SEAFOOD RECIPES
    • Keto Fish Pie

    Ingredients

    Just basic low carb ingredients and fish make this tasty keto fish pie.

    fish pie ingredients

    How to Make a Keto Fish Pie

    I find the best way to make this fish pie is to be organized and cook the 3 main components in this order:

    1. Topping – Cooking the cauliflower first means it can be cooking on the stove whilst you get on with the sauce.
    2. Sauce – The cheese sauce is easy to make and can be set aside until ready for use.
    3. Fish - I find that steaming the fish is a great way to maintain the flavours.   You could bake or grill the fish too. We use prawns which some people also call shrimps.
    mashing cauliflower

    Cook and mash the cauliflower with the cheese and herbs.

    fish in baking dish

    Place the cooked fish and prawns in a baking dish.

    mashed cauliflower

    Spoon the cauliflower mash on top of the fish.

    keto fish pie

    Bake for 20 minutes.

    Baking Tips

    Although I have made this fish pie in a large baking dish, I’ve also made it in large ramekin pots for individual pies too. The pie can be assembled and kept aside in the fridge until you are ready to bake.

    keto fish pie

    Variations

    You could play around with the ingredients to the fish pie and give it your own twist. A few suggestions are:

    • Smoked fish
    • Lobster (that’s a payday pie!)
    • Spinach, cooked
    • Mushrooms, sliced and cooked
    • White wine in the sauce
    • Smoked cheese (Gouda would be great)
    • Hard boiled eggs (the traditional fish pie can be served with hard boiled eggs in it).

    Storage

    Keep any leftovers in the fridge in a sealed container and it should last up to 3 days. Reheat in the oven or microwave.

    What to serve with keto fish pie

    Green vegetable or a green salad make a great side dish. Roasted low carb alternatives to potatoes are also a delicious side dish. Try cheesy green beans, roasted asparagus, turnip fries, cheesy baked asparagus or roasted broccoli.

    keto fish pie with cauliflower

    MORE KETO FISH & SEAFOOD RECIPES

    Spicy Fish Fritters

    Prawns in a coconut sauce

    Salmon En Croute

    Keto Shrimp Alfredo

    keto fish pie

    Keto Fish Pie

    Angela Coleby
    An easy fish pie with a cauliflower topping
    5 from 4 votes
    Print Recipe Pin Recipe
    Prep Time 20 minutes mins
    Cook Time 40 minutes mins
    Total Time 1 hour hr
    Course Main Course
    Cuisine British
    Servings 6 servings
    Calories 268 kcal

    Ingredients
     
     

    Topping

    • 1 medium cauliflower
    • 3 tablespoons sour cream
    • 1 cup Cheddar cheese, grated
    • 2 tablespoons butter unsalted
    • ½ teaspoon salt
    • ½ teaspoon black pepper
    • 1 tablespoon chives, fresh chopped

    Filling

    • 7 oz white fish
    • 4 oz salmon
    • 10 medium prawns

    Sauce

    • ½ cup cream cheese
    • ½ cup heavy cream
    • 1 teaspoon Dijon mustard
    • 1 teaspoon lemon juice
    • 1 tablespoon parsley, chopped
    • 1 tablespoon chives, chopped

    Instructions
     

    MAKE THE CAULIFLOWER TOPPING

    • Cut the cauliflower into florets and place in a saucepan.
    • Cover with water and bring to the boil.
    • Cover with a lid and simmer for 20 minutes until soft.
    • Drain and add the butter. Mash the cauliflower until the butter has melted.
    • Add the grated cheese & sour cream. Season with salt & pepper.
    • Blend the mashed cauliflower until smooth (you could do this with a form if you don’t want the topping too smooth)
    • Add the chives into the mixture.


    COOK THE FISH

    • Poach or steam the fish & prawns for 8 minutes, until cooked and easy to flake.
    • Set aside

    MAKE THE SAUCE

    • Place the cream cheese, cream, lemon and mustard in a saucepan and gently heat until smooth.
    • Stir in the chopped herbs.


    ASSEMBLE

    • Pre-heat the oven to 200C/400F degrees.
    • Flake the white fish and salmon into large chunks.
    • Add the fish and prawns into the cheese sauce and stir.
    • Spoon the fish sauce into a baking dish.
    • Pipe or spoon the cauliflower mash over the top of the fish mixture.
    • Bake for 20 minutes until the top is golden.
    • Serve and enjoy.

    Notes

    Makes 6 servings
    The net carbs will be the total carb count minus the fibre count. Carb count excludes sugar alcohols.
    Any nutritional analysis on the website is based on an estimate, calculated by http://nutritiondata.self.com from the individual ingredients in each recipe. Variations may occur for various reasons, including product availability and food preparation. We make no representation or warranty of the accuracy of this information.

    Nutrition

    Serving: 1servingCalories: 268kcalCarbohydrates: 3.5gProtein: 18.6gFat: 21gFiber: 1.2g
    Have you tried this recipe? Leave a review or take a picture and share it on InstagramMention @Divalicious_Recipes or tag #divaliciousrecipes

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    Reader Interactions

    Comments

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      Recipe Rating




    1. irene

      April 26, 2023 at 1:13 pm

      Can this be frozen for future meals ?

      Reply
      • Angela Coleby

        April 26, 2023 at 2:39 pm

        Yes it can. I've frozen it for the husband to enjoy later a few times.

        Reply
    2. Gladys

      March 10, 2023 at 10:32 pm

      For a less watery/ soupy cauli mash…do not boil the cauliflower simply break into florets and place them in a microwave safe dish
      (Corning ware)
      And microwave on high until really, really tender. Begin with 6 minutes and then poke the cauliflower with a fork and test for tenderness.
      By not boiling the veg…it will be drier and easier to “mash” without much draining. Only natural moisture within the cauliflower will be released into the bottom of the microwave dish. Drain it away.
      Also, “mashing” by whizzing the florets in a food processor, which is so much easier…and just season with desired spices and only use butter!
      Plus…if you want to remove the cabbage flavour that lingers in the mash…simply add a very tiny fresh clove of garlic!
      It neutralizes that cabbage taste greatly!
      Once the food processor produces a very smooth cauliflower mash…proceed with the remainder of the recipe! Enjoy!
      P.S. what white fish did you use, please? I know so little about fish.

      Reply
      • Angela Coleby

        March 13, 2023 at 9:21 am

        I used cod for the white fish.

        Reply
    3. Steve Griggs

      February 04, 2022 at 2:31 pm

      This is really lovely. We will definitely have this again. It would be really useful though if you give the ingredients in grams and millilitres as well as outside US nobody uses cups. It would save a lot of faff for everyone else outside America that uses your recipes. Thanks.

      Reply
      • Angela Coleby

        February 05, 2022 at 9:56 am

        Glad you enjoyed it. All my recipes have a button on the recipe card to covert the measurements from US to metric.

        Reply
    4. Eleanor

      December 24, 2021 at 5:18 am

      Can you freeze this recipe

      Reply
      • Angela Coleby

        December 24, 2021 at 8:18 am

        Yes you can. I've frozen smaller versions happily.

        Reply
    5. Melissa

      September 29, 2021 at 2:21 am

      This is so good. I did leave out the cream and did Soeur cream and cream cheese for the sauce and just cauliflower and butter with S&P for the topping with grated Parmesan on top. And used flaked smoke fish with scallops. I’m in heaven, low carb, lemony, creamy, mashy heaven 😍

      Reply
      • Angela Coleby

        September 29, 2021 at 12:49 pm

        Love your spin on the recipe and delighted you enjoys it!

        Reply
    6. Nicky

      September 11, 2021 at 8:44 am

      This is super-delicious thank you!

      Reply
      • Angela Coleby

        September 11, 2021 at 10:55 am

        Happy you liked it! Thanks for taking the time to review it!

        Reply
    7. Susan

      February 14, 2021 at 4:39 pm

      Thanks so much. We LOVED it. We have some left over. Is it OK to pop in the fridge and have again tomorrow? If so, how would you recommend heating?
      Thanks

      Reply
      • Angela Coleby

        February 15, 2021 at 9:53 am

        Leftovers store fine in the fridge and can be reheated the next day either in the oven or microwave. Glad you enjoyed it!

        Reply
    8. Lynsey Telford

      February 05, 2021 at 2:01 pm

      Absolutely delicious! I added a couple of hard boiled eggs in with the fish. Was demolished by everyone, including my 3 and 6 year old

      Reply
      • Angela Coleby

        February 08, 2021 at 12:50 pm

        Thank you! Glad you all enjoyed it!

        Reply
    9. Bill

      September 30, 2020 at 8:12 pm

      Oh by the way the family really liked this meal they want to add it to the regular dinner rotation thanks for sharing!

      Reply
      • Angela Coleby

        October 08, 2020 at 8:35 am

        Glad the family liked it!

        Reply
    10. Alice

      February 12, 2020 at 5:15 pm

      thank you so much Angela for a great keto version of our favourite British grub! Perfectly creamy and thick with no flour or other high carb thickeners. The non low carbers in your family will LOVE it too. A great family feed. xxx

      Reply
    11. Laura

      February 10, 2020 at 1:21 am

      Have you ever tries a can of wild salmon with this recipe? I think I mitght try it. You are a delicious cook!

      Reply
      • Angela Coleby

        February 10, 2020 at 10:36 am

        Thank you Laura. That's a great idea!

        Reply
        • Bill

          September 30, 2020 at 8:07 pm

          I just made this meal for the family and I followed your instructions all the way but I haven't eaten yet cause I'm confused about the portion size and the carb count you have 3.5 is that minus the fiber 1.2 already or do I minus the fiber 1.2 myself and the net carbs is 2.3?

          Reply
          • Angela Coleby

            October 08, 2020 at 8:36 am

            The recipe card shows the total carbs and fiber so you subtract them yourself.

            Reply

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    Hi, I'm Angela ! I'm the creator behind all the tasty low carb & gluten free recipes at Divalicious Recipes. I live in sunny St Lucia with the Chief Taster and my dogs & cats.

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