Keto Zesty Lemon Butter Fish Fillet

Light, Flaky & Full of Flavor

Looking for a quick, low-carb, and delicious meal? This Keto Zesty Lemon Butter Fish Fillet is the answer. Tender, flaky fish fillets are pan-seared and smothered in a tangy, buttery lemon sauce — a simple yet impressive dish that’s perfect for a healthy keto-friendly dinner.




💚 Why You’ll Love This Recipe

Low-carb & keto-friendly: Perfect for ketogenic or low-carb lifestyles.

Quick & easy: Ready in under 30 minutes.

Full of flavor: Zesty lemon butter sauce enhances the natural taste of fish.

Light yet satisfying: Ideal for a weeknight dinner or special occasion.





🛒 Ingredients

4 fish fillets (such as cod, tilapia, or haddock), skinless

Salt and pepper, to taste

2 tbsp olive oil or avocado oil

3 tbsp unsalted butter

2 cloves garlic, minced

1 lemon, juiced and zested

1 tsp dried parsley or 1 tbsp fresh parsley, chopped

Optional: lemon slices for garnish





👩‍🍳 Instructions

1. Prepare the Fish

Pat the fish fillets dry with a paper towel. Season both sides with salt and pepper.

2. Sear the Fillets

Heat olive oil in a large skillet over medium-high heat. Add the fish and cook for 3–4 minutes per side, or until golden brown and cooked through. Remove the fillets and set aside.

3. Make the Lemon Butter Sauce

In the same skillet, reduce heat to medium. Add butter and garlic, sautéing for 1 minute until fragrant. Stir in lemon juice, lemon zest, and parsley. Cook for another 1–2 minutes, allowing the sauce to thicken slightly.

4. Combine and Serve

Return the fish fillets to the skillet, spooning the lemon butter sauce over them. Serve immediately with optional lemon slices for garnish.




🍽️ Serving Suggestions

Serve with sautéed zucchini noodles or steamed asparagus for a low-carb meal.

Pair with cauliflower rice or a fresh green salad for a complete keto-friendly dinner.

Drizzle extra lemon butter sauce on the side for maximum flavor.





🧊 Storage Tips

Refrigerate: Store leftovers in an airtight container for up to 2 days.

Reheat: Warm gently in a skillet over low heat to avoid drying out the fish.





🔥 Pro Tips

Choose firm, flaky fish like cod or tilapia to prevent breaking during cooking.

Don’t overcook — fish cooks quickly and can become dry if left too long.

Add a pinch of red pepper flakes to the sauce for a subtle kick.





🌟 Final Thoughts

This Keto Zesty Lemon Butter Fish Fillet is a light, flavorful, and easy-to-make dish perfect for anyone following a keto or low-carb diet. With its buttery lemon sauce and tender fish, it’s a simple recipe that feels gourmet — ideal for weeknight dinners or impressing guests.

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