Keto Baked Fish with Lemon Butter Sauce

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 Butter

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

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!

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

Keto Baked Fish with Lemon Butter Sauce

Aussie Keto Queen
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
Course Dinner
Cuisine Keto
Servings 2
Calories 461 kcal


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


  • Preheat oven to 220 deg c. Line a baking dish with baking paper.
  • Finely grate the rind of the lemon and cut half of it into small segments.
  • Pat dry fish then season with salt and epper. Drizzle with olive oil and half the lemon rind. Place in the oven and bake for 12 - 14 minutes until just falling apart and cooked through.
  • Steam the broccolini in the microwave until just tender (around 4 mins). Drain and set aside to dry.
  • Meanwhile, in a frying pan heat the butter over medium heat until just turning golden, around 3 - 4 minutes. Add the lemon rind and garlic and cook for a further 1 minute. Stir in the lemon segments and steamed broccolini.
  • Serve the fish topped with broccolini and lemon sauce on a bed of cauliflower mash.