Low Carb Salmon Gratin

This salmon gratin is creamy, satisfying, and delicious! Low carb, keto, LCHF and gluten free recipe.

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So this is the fifth gratin recipe on the site! If you're “Au” such a gratin fan (geddit?!?!) – check out the others: Asparagus Gratin, Oyster Gratin (oh yes!), Fennel Gratin and Spaghetti Squash Gratin. They're all quite different, and this salmon gratin is definitely worth trying. Yes, it's high in fat, but it's very filling and low in carbs (of course)! It's creamier than my other gratins, and the combination of the light cooked salmon, the aniseedy tarragon and that cream – not to mention the crunchy cheese topping – all come together for a hugely satisfying dish.

In this recipe, the salmon is actually cooked twice – both indirectly. It first gets a citrus bath (much like a ceviche), and then is broiled under a layer of cheese. The result is super soft salmon that just melts in the mouth. This dish was a big hit with my husband – and I know you're going to love it, too!

How to Make Low Carb Salmon Gratin

To prepare the fish, remove skin (if any) and cut the salmon into cubes. Place it in a bowl and add lemon zest and juice. Cover and leave for 10 minutes, stirring after 5 minutes.

Meanwhile, finely chop some red onion. Add some olive oil to a skillet and place over a medium heat. Add the onion and some garlic, and cook until the onion is tender. Divide the mixture between two large ramekins or two small baking dishes (I used these 12oz Au Gratin dishes from Ayesha Curry Kitchenware!!! that I last used for my Individual Chicken Pies – I love them!).

Drain the juice from the salmon, and add heavy cream, chopped fresh tarragon, salt and pepper. Stir well, then spoon the mixture on top of the onion.

Finally, sprinkle some shredded Swiss cheese (Gruyere or Emmenthal would be perfect), over each dish.

Place under a preheated broiler until the cheese has melted and has turned golden brown. Serve with a salad or side dish of your choice!

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Low Carb Salmon Gratin

Yield: 2 Servings

Prep Time: 10 minutes

Cook Time: 10 minutes

Total Time: 20 minutes

This salmon gratin is creamy, satisfying, and delicious! Low carb, keto, LCHF and gluten free recipe.

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Ingredients

• 2 salmon fillets, skinless
• ½ lemon, juice and zest
• 1 tbs olive oil
• ½ medium red onion, finely chopped
• ½ tsp garlic paste, or minced garlic
• ½ cup heavy cream
• 1 tbs fresh tarragon, chopped
• salt and pepper
• ¼ cup shredded Swiss cheese

Instructions

1. To prepare the fish, cut the salmon into cubes. Place it in a bowl and add lemon zest and juice. Cover and leave for 10 minutes, stirring after 5 minutes.
2. Meanwhile, add the olive oil to a skillet and place over a medium heat. Add the onion and some garlic, and cook until the onion is tender. Divide the mixture between two large ramekins or two small baking dishes.
3. Preheat the broiler.
4. Drain the juice from the salmon, and add heavy cream, chopped fresh tarragon, salt and pepper. Stir well, then spoon the mixture on top of the onion.
5. Finally, sprinkle the Swiss cheese over each dish and place under the broiler until the cheese has melted and has turned golden brown.

Notes

4g net carbs per serving (half the whole recipe)

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• 
  Ayesha Collection Ceramics Au Gratin Set, 12-Ounce, French Vanilla, 2-Piece

Nutrition Information

Yield 2 Serving Size Half the recipe
Amount Per ServingCalories 568Total Fat 43gSaturated Fat 18gCholesterol 187mgSodium 124mgCarbohydrates 4gNet Carbohydrates 4gFiber 0gProtein 39g

Nutritional information for this recipe is provided as a courtesy and is my best approximation. I cannot guarantee completely accurate data due to variations in ingredients and cooking methods. Carbohydrates from sugar alcohols are not included in net carb counts as it has been shown that they do not impact blood sugar. Net carbs are the total carbs minus fiber.