Slow-Roasted Barramundi with Lemon and Finger Lime

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

Delicately slow-roasted barramundi fillets topped with fresh finger lime pearls and a squeeze of lemon for a zesty finish. This australian-inspired seafood (gluten free) ready in about 35 minutes pairs fillets (6 oz each) barramundi fillets, olive oil, lemon zest for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 220 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: 25 min Serves 4 Australian cuisine 220 cal/serving
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Ingredients

Instructions

  1. Step 1: Preheat the oven to 275°F (135°C). Place 4 barramundi fillets in a single layer on a baking tray lined with parchment paper.
  2. Step 2: Drizzle 2 tbsp olive oil evenly over the fillets, then sprinkle 1 tsp sea salt, 1/2 tsp black pepper, and 1 tsp lemon zest on top.
  3. Step 3: Roast the fish for 20-25 minutes until it flakes easily with a fork and is opaque in the center.
  4. Step 4: Remove from oven and immediately drizzle 2 tbsp fresh lemon juice over the fillets.
  5. Step 5: Carefully scoop the pearl-like vesicles from 2 halved finger limes and sprinkle them on top along with 2 tbsp chopped fresh parsley.
  6. Step 6: Serve warm with steamed greens or a light salad to complement the citrusy, delicate fish.

Equipment for this recipe

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Frequently asked questions

How long does Slow-Roasted Barramundi with Lemon and Finger Lime take to make?

Total time is about 35 minutes (10 min prep + 25 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 Slow-Roasted Barramundi with Lemon and Finger Lime?

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 olive oil from drying out.

Can I substitute ingredients in Slow-Roasted Barramundi with Lemon and Finger Lime?

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 Slow-Roasted Barramundi with Lemon and Finger Lime 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 Slow-Roasted Barramundi with Lemon and Finger Lime 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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