Barramundi Fillets Pan-Seared with Lemon Myrtle and Wattleseed Butter

By AislePrompt Test Kitchen · Reviewed by AislePrompt Editorial · ·

Delicate barramundi fillets pan-seared and topped with a fragrant lemon myrtle and wattleseed compound butter for an elegant Australian seafood dish. This australian-inspired seafood (gluten free) ready in about 20 minutes pairs salt, black pepper, olive oil for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 300 calories and feeds 4, so it slots cleanly into a weekly meal plan and pairs well with a quick salad or grain on the side. Tap "Plan a meal with the AI" below to drop this recipe into your week and send the ingredients straight to Instacart. Nutrition values are approximate, calculated from USDA FoodData Central (fdc.nal.usda.gov) — verify against ingredient labels for any health-driven dietary plan.

Prep: 10 min Cook: 10 min Serves 4 Australian cuisine 300 cal/serving
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Ingredients

Instructions

  1. Step 1: Pat dry 4 barramundi fillets and season both sides with 1 tsp salt and 1/2 tsp black pepper.
  2. Step 2: In a small bowl, combine 4 tbsp softened unsalted butter with 1 tsp lemon myrtle powder, 1/2 tsp ground wattleseed, and 1 tbsp fresh lemon juice. Mix until smooth and refrigerate until ready to serve.
  3. Step 3: Heat 2 tbsp olive oil in a large non-stick skillet over medium-high heat until shimmering.
  4. Step 4: Place the fillets skin-side down and cook for 4-5 minutes without moving until the skin is crisp and golden.
  5. Step 5: Flip the fillets carefully and cook an additional 2-3 minutes until the fish is opaque and flakes easily with a fork.
  6. Step 6: Remove the fillets from the pan and top each with 1 tbsp of the lemon myrtle and wattleseed butter to melt over the warm fish.
  7. Step 7: Garnish with 1 tbsp chopped fresh parsley if desired and serve immediately with steamed vegetables or salad.

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Frequently asked questions

How long does Barramundi Fillets Pan-Seared with Lemon Myrtle and Wattleseed Butter take to make?

Total time is about 20 minutes (10 min prep + 10 min cook). Most home cooks find this fits comfortably into a weeknight; double the batch on Sunday for two dinners.

How do I store leftover Barramundi Fillets Pan-Seared with Lemon Myrtle and Wattleseed Butter?

Cool to room temperature within 2 hours, then store in an airtight container in the fridge for up to 4 days. Reheat covered in a 350°F oven for 10-12 minutes, or microwave at 70% power in 60-second bursts to keep salt from drying out.

Can I substitute ingredients in Barramundi Fillets Pan-Seared with Lemon Myrtle and Wattleseed Butter?

Yes — most ingredients in this recipe have flexible swaps. For oil, use any neutral high-smoke-point oil (avocado, grapeseed, refined coconut). For aromatics, dried herbs at ⅓ the volume of fresh work in a pinch. The full ingredient list is shoppable on Instacart so you can see substitutes in real time.

How do I scale Barramundi Fillets Pan-Seared with Lemon Myrtle and Wattleseed Butter for a different number of people?

The recipe is written for 4 servings. Multiply each ingredient by (your serving target / 4). Cook time stays roughly the same up to 2x; for 3-4x batches, switch from a skillet to a sheet pan or stockpot so the food isn't crowded — overcrowding steams instead of browns.

Is Barramundi Fillets Pan-Seared with Lemon Myrtle and Wattleseed Butter gluten free?

Yes — this recipe is tagged gluten free based on its ingredient list. Always cross-check labels for packaged ingredients (sauces, broths, condiments) since formulations vary by brand.

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