Pan-Seared Sea Bass with Lemon-Thyme Brown Butter Sauce
Flaky sea bass fillets pan-seared to a golden crust and finished with a nutty brown butter sauce infused with fresh lemon and thyme. This mediterranean-inspired seafood ready in about 25 minutes blends fillets (6 oz each) sea bass fillets, unsalted butter, fresh thyme sprigs into a versatile sauce that lifts everything from grain bowls and roasted vegetables to grilled proteins — a small-batch staple worth keeping in the fridge. Each serving lands at about 320 calories and feeds 4, so a small batch covers several meals across the week without taking over the fridge. 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.
Ingredients
- 4 fillets (6 oz each) sea bass fillets
- 6 tbsp unsalted butter
- 4 sprigs fresh thyme sprigs
- 1 tsp lemon zest
- 2 tbsp lemon juice
- 1.5 tsp salt
- 1 tsp black pepper
- 2 tbsp olive oil
Instructions
- Step 1: Pat dry 4 sea bass fillets (6 oz each) and season both sides with 1.5 tsp salt and 1 tsp black pepper.
- Step 2: Heat 2 tbsp olive oil in a large skillet over medium-high heat until shimmering. Place the fillets skin-side down and cook for 4-5 minutes without moving until the skin is crisp and golden.
- Step 3: Flip the fillets gently and cook for 2 minutes more until the fish is opaque and flakes easily.
- Step 4: Remove the fillets to a warm plate. Reduce heat to medium-low and add 6 tbsp unsalted butter to the same skillet.
- Step 5: Add 4 fresh thyme sprigs and 1 tsp lemon zest to the butter. Cook, swirling the pan frequently, until the butter foams and turns golden brown with a nutty aroma, about 3 minutes.
- Step 6: Remove from heat, stir in 2 tbsp fresh lemon juice, and immediately spoon the brown butter sauce over the sea bass fillets before serving.
Equipment for this recipe
Top-rated tools to make this recipe successfully.
Frequently asked questions
How long does Pan-Seared Sea Bass with Lemon-Thyme Brown Butter Sauce take to make?
Total time is about 25 minutes (10 min prep + 15 min cook). A small batch typically covers several meals in the week — store as the recipe directs.
How do I store leftover Pan-Seared Sea Bass with Lemon-Thyme Brown Butter Sauce?
Transfer to an airtight jar and refrigerate for up to 5–7 days. Most sauces freeze well for up to 2 months — portion into small containers or freezer bags so you can thaw only what you need. Stir before serving; cream- or yogurt-based sauces may separate on standing.
Can I substitute ingredients in Pan-Seared Sea Bass with Lemon-Thyme Brown Butter Sauce?
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 Lemon-Thyme Brown Butter Sauce 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 Lemon-Thyme Brown Butter Sauce?
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.
