Keto Baked Fish with Lemon Butter

Keto Baked Fish with Lemon Butter

This Keto Baked Fish recipe is for those that don’t like fishy fish. You know what I mean, that really overly fishy flavour – so many people say they don’t like it.

Keto baked fish with lemon butterKeto Roast Eggplant Salad (5)

Using a mild white fish like ling, hoki or grenadier is perfect for a keto baked fish dish.

Topping it with a lemon butter sauce, with fresh lemon segments makes this dish vibrant but comforting at the same time.

I like to serve it with cauliflower mash, which I always cook first because once the fish is cooking, it’s all systems go and this is on the table 15 minutes later!

Keto baked fish with lemon butterKeto Roast Eggplant Salad (5)

Here’s my recipe for the only cauliflower mash you’ll ever need

This recipe can easily be doubled or even tripled if you are cooking for a crowd.


Keto baked fish with lemon butterKeto Roast Eggplant Salad (5)

Enjoy x

Keto baked fish with lemon butterKeto Roast Eggplant Salad (5)
5 from 3 votes

Keto Baked Fish with Lemon Butter Sauce

A delicious, fresh dish, this is for those people that don't like a strong fish taste. Easily served with broccolini but just as great with beans or asparagus. Serve on a bed of creamy cauliflower mash to soak up the sauce. 

Prep Time 10 minutes
Cook Time 10 minutes
Total Time 20 minutes
Servings 2
Calories 476 kcal


  • 2 150 gram white fish fillets
  • 1 tablespoon olive oil
  • 1 lemon
  • 1 teaspoon salt
  • 1/2 teaspoon pepper
  • 1 bunch broccolini
  • 100 grams butter
  • 1 teaspoon garlic paste


  1. Preheat oven to 220C / 428F. Line a baking dish with baking paper. 

  2. Finely grate the rind of one lemon and cut half of it into small segments. 

  3. Pat dry fish then season with salt and pepper. Drizzle with olive oil and half the grated lemon rind. Place in the oven and bake for 12 - 14 minutes until just falling apart and cooked through. 

  4. Steam the broccolini in the microwave until just tender (around 4 mins). Drain and set aside to dry.

  5. Meanwhile, in a frying pan heat the butter over medium heat until just turning golden, around 3 - 4 minutes. Add the remaining half lemon rind and garlic and cook for a further 1 minute. Stir in the lemon segments and steamed broccolini. 

  6. Serve the fish topped with broccolini and lemon sauce on a bed of cauliflower mash. 

Nutrition Facts
Keto Baked Fish with Lemon Butter Sauce
Amount Per Serving
Calories 476 Calories from Fat 423
% Daily Value*
Fat 47g72%
Saturated Fat 26g163%
Cholesterol 108mg36%
Sodium 1547mg67%
Potassium 74mg2%
Carbohydrates 12g4%
Fiber 2g8%
Sugar 3g3%
Protein 19g38%
Vitamin A 2750IU55%
Vitamin C 107.4mg130%
Calcium 86mg9%
Iron 1mg6%
* Percent Daily Values are based on a 2000 calorie diet and all calculations are estimates only.


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