Barramundi Fillets Baked with Macadamia and Lemon Myrtle Crust

By , Test Kitchen Director · Reviewed by AislePrompt Editorial · ·

Oven-baked barramundi topped with a fragrant macadamia nut crust infused with lemon myrtle, delivering a crunchy and citrusy seafood dish. This australian-inspired seafood (gluten free option) ready in about 33 minutes pairs (about 150 g each) barramundi fillets, chopped macadamia nuts, lemon myrtle powder for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 350 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: 15 min Cook: 18 min Serves 4 Australian cuisine 350 cal/serving
Plan a meal with the AI → Shop this recipe on Instacart → Shop equipment ↓

Ingredients

Instructions

  1. Step 1: Preheat oven to 375°F. Lightly grease a baking dish with 1 tbsp olive oil and place 4 barramundi fillets skin-side down.
  2. Step 2: In a bowl, combine 1/2 cup chopped macadamia nuts, 1 tsp lemon myrtle powder, 1/3 cup panko breadcrumbs, 3 tbsp melted unsalted butter, 1 minced garlic clove, 1 tsp salt, and 1/2 tsp black pepper until the mixture is crumbly but sticks together.
  3. Step 3: Press the macadamia mixture firmly onto the top of each barramundi fillet, covering evenly.
  4. Step 4: Bake the fillets for 15-18 minutes until the fish is opaque and flakes easily with a fork, and the crust is golden brown and crunchy.
  5. Step 5: Serve immediately with fresh lemon wedges to squeeze over.

Equipment for this recipe

Top-rated tools to make this recipe successfully.

More Bakeware & baking tools → Shop all kitchen tools →

Frequently asked questions

How long does Barramundi Fillets Baked with Macadamia and Lemon Myrtle Crust take to make?

Total time is about 33 minutes (15 min prep + 18 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 Baked with Macadamia and Lemon Myrtle Crust?

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 chopped macadamia nuts from drying out.

Can I substitute ingredients in Barramundi Fillets Baked with Macadamia and Lemon Myrtle Crust?

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 Baked with Macadamia and Lemon Myrtle Crust 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 Baked with Macadamia and Lemon Myrtle Crust gluten free option?

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

Related recipes