Pan-Seared Sea Bass with Avocado and Tomato Relish

By AislePrompt Test Kitchen · Reviewed by AislePrompt Editorial · ·

Delicate sea bass fillets pan-seared until golden, served alongside a refreshing avocado and tomato relish that captures California’s coastal flavors. This mediterranean-inspired seafood ready in about 20 minutes pairs salt, freshly ground black pepper, olive oil for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 320 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 Mediterranean cuisine 320 cal/serving
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Ingredients

Instructions

  1. Step 1: Pat dry 4 sea bass fillets and season both sides with 1 tsp salt and 1 tsp freshly ground black pepper. Set aside.
  2. Step 2: Heat 3 tbsp olive oil in a large nonstick skillet over medium-high heat until shimmering but not smoking.
  3. Step 3: Place the sea bass fillets skin-side down in the skillet. Cook for 4-5 minutes without moving until the skin is crisp and golden.
  4. Step 4: Carefully flip the fillets and cook for an additional 3-4 minutes until the fish is opaque and flakes easily with a fork.
  5. Step 5: While fish cooks, combine 1 diced large avocado, 1 cup quartered cherry tomatoes, 2 tbsp finely chopped red onion, 1/4 cup chopped fresh basil, 2 tbsp fresh lemon juice, and 1/4 tsp red chili flakes (if using) in a bowl. Gently toss to combine.
  6. Step 6: Serve the pan-seared sea bass immediately topped generously with the avocado and tomato relish for a fresh, bright contrast.

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Frequently asked questions

How long does Pan-Seared Sea Bass with Avocado and Tomato Relish 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 Pan-Seared Sea Bass with Avocado and Tomato Relish?

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 Pan-Seared Sea Bass with Avocado and Tomato Relish?

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 Pan-Seared Sea Bass with Avocado and Tomato Relish 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.

What goes well with Pan-Seared Sea Bass with Avocado and Tomato Relish?

Mediterranean seafood like this pair well with a simple grain (rice, couscous, or crusty bread), a quick salad with acid (lemon vinaigrette, pickled onions), and a pan sauce or yogurt-based dip. Tap "Plan a meal with the AI" to get specific side suggestions.

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