Zingy Lemon Fish dunks tender Gurnard fillets into a bubbling lemon-butter pan sauce under a herbed almond flour crust. Chives, dill, garlic, and onion powder keep every bite savory and bright at the same time. Dinner for four at just 4g of carbs per plate.
Why You'll Love This Zingy Lemon Fish
This recipe is incredibly straightforward but delivers restaurant-quality flavor. The almond flour provides a lovely texture without the heavy carbs, while the herbs elevate the naturally sweet and firm profile of the Gurnard fillets!
Recipe Details
- Preparation Time: 50 minutes
- Cooking Time: 40 minutes
- Servings: 4
Ingredients for Zingy Lemon Fish
- 14 oz (396g) fresh Gurnard fish fillets
- 2 tbsp. (30ml) lemon juice
- 6 tbsp. (85g / 3 oz) butter
- 0.5 cups (48g / 1.69 oz) fine almond flour
- 2 tsp. (2g / 0.07 oz) dried chives
- 1 tsp. (3g / 0.11 oz) garlic powder
- 2 tsp. (2g / 0.07 oz) dried dill
- 2 tsp. (4g / 0.14 oz) onion powder
How to Make Zingy Lemon Fish
- Mix 0.5 cups (48g / 1.69 oz) fine almond flour, 2 tsp. (2g / 0.07 oz) dried chives, 1 tsp. (3g / 0.11 oz) garlic powder, 2 tsp. (2g / 0.07 oz) dried dill, and 2 tsp. (4g / 0.14 oz) onion powder together. Spread the dry mixture evenly all over a large plate.
- Place a large pan over medium-high heat. Add 3 tbsp. (42.5g / 1.5 oz) butter and 1 tbsp. (15ml) lemon juice. Place the 14 oz (396g) Gurnard fillets into the pan and cook for 3 minutes. Move the fillets around the pan so that they absorb the melting butter and lemon juice.
- Add the remaining 3 tbsp. (42.5g / 1.5 oz) butter and 1 tbsp. (15ml) lemon juice to the pan. When the butter completely melts, flip the fillets over to the other side and cook until fully done and tender.
- Serve the Zingy Lemon Fish fillets immediately, making sure to pour the remaining pan butter directly over the fish for maximum flavor.
Nutritional Information (Per Serving)
- Calories: 406 kcal
- Protein: 29g (1.02 oz)
- Fat: 30.3g (1.07 oz)
- Carbohydrates: 4g (0.14 oz)
Chef's Pro Tips for the Perfect Zingy Lemon Fish
- Pat the Fish Dry: Before coating your Gurnard fillets in the almond flour mixture, thoroughly pat them dry with a paper towel. This ensures the crust sticks to the fish and helps achieve a beautiful, golden sear rather than steaming in the pan.
- Manage Your Heat: Butter can burn quickly. Keep your pan at a strict medium-high heat. If you notice the butter solids turning dark brown too fast, drop the heat to medium to protect that delicate, tangy lemon-butter sauce.
- Press the Crust Firmly: Almond flour doesn't bind exactly like traditional wheat flour. Gently but firmly press the herb and almond flour mixture into both sides of the fillets so it adheres well before hitting the hot pan.
- Don't Overcook: Gurnard cooks relatively fast. You'll know it's perfectly done when the thickest part of the fillet flakes easily with a fork and turns opaque.
Frequently Asked Questions (FAQ)
Can I use a different type of fish for this Zingy Lemon Fish recipe? Absolutely! While Gurnard is fantastic because of its firm texture, you can easily substitute it with any firm white fish. Cod, halibut, haddock, or even tilapia make excellent alternatives and will soak up the lemon butter sauce beautifully.
Is this Zingy Lemon Fish recipe keto-friendly and gluten-free? Yes! By swapping traditional breadcrumbs or wheat flour for fine almond flour, this dish is naturally gluten-free, extremely low in carbohydrates (only about 4g / 0.14 oz per serving), and completely keto-friendly.
How do I store and reheat leftover pan-seared fish? Store any leftover fish in an airtight container in the refrigerator for up to 2 days. To reheat, avoid the microwave, which can make the fish rubbery. Instead, warm it gently in a skillet over medium-low heat with a tiny splash of water or extra butter until heated through.
Can I use bottled lemon juice instead of fresh lemons? For the best, most vibrant flavor, fresh lemon juice is highly recommended. The natural oils and fresh acidity are what make this dish truly "zingy." However, high-quality bottled lemon juice will work in a pinch if you are short on time.
Pro Tips
- Pat the Gurnard fillets thoroughly dry before coating them in the almond flour mixture. Dry fish helps the crust stick and gives you a golden sear instead of a steam.
- Press the herb and almond flour mixture firmly into both sides of the fillets. Almond flour doesn't bind the way wheat flour does, so a firm press keeps the crust on the fish.
- Keep the pan at a strict medium-high heat. Butter burns fast, and if the solids start turning dark brown too quickly, drop the heat to medium to protect the tangy lemon-butter sauce.
- Add the butter and lemon juice in two stages as the recipe does, half at the start and half when you flip, so the sauce stays balanced and glossy.
- Don't overcook the fillets. Gurnard is done when the thickest part flakes easily with a fork and turns opaque.
Frequently Asked Questions
What can I use instead of Gurnard?
Any firm white fish fillet behaves the same way in this lemon-butter pan sauce. Keep the pieces a similar thickness so the cooking time stays close to the original.
Can I make the herb crust nut-free?
Swap the almond flour for finely crushed pork rinds. The coating stays crispy and keto, and the dried herb blend works just as well with it.
How do I know when the fish is done?
Watch the thickest part of the fillet. It's ready when it flakes easily with a fork and turns opaque, which happens quickly in the hot butter sauce.
Is this lemon fish keto-friendly?
Yes. Each of the four servings has 4g of carbs and 29g of protein, with most of the fat coming from the butter in the pan sauce.
Recipe card below.
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Ingredients
Method
- Mix 0. 5 cups (48g / 1.69 oz) fine almond flour, 2 tsp. (2g / 0.07 oz) dried chives, 1 tsp. (3g / 0.11 oz) garlic powder, 2 tsp. (2g / 0.07 oz) dried dill, and 2 tsp. (4g / 0.14 oz) onion powder together.
- Spread the dry mixture evenly all over a large plate.
- Place a large pan over medium-high heat.
- Add 3 tbsp. (42. 5g / 0.18 oz) butter and 1 tbsp. (15ml) lemon juice.
- Place the 14 oz (396g) Gurnard fillets into the pan and cook for 3 minutes. Move the fillets around the pan so that they absorb the melting butter and lemon juice.
- Add the remaining 3 tbsp. (42. 5g / 0.18 oz) butter and 1 tbsp. (15ml) lemon juice to the pan.
- When the butter completely melts, flip the fillets over to the other side and cook until fully done and tender.
- Pat the Fish Dry: Before coating your Gurnard fillets in the almond flour mixture, thoroughly pat them dry with a paper towel. This ensures the crust sticks to the fish and helps achieve a beautiful, golden sear rather than steaming in the pan.
- Don't Overcook: Gurnard cooks relatively fast. You'll know it's perfectly done when the thickest part of the fillet flakes easily with a fork and turns opaque.








