Baked Chilean Sea Bass
If you’re looking to impress your guests with a meal that feels luxurious yet is surprisingly easy to prepare, this Baked Chilean Sea Bass recipe is just what you need. With its flaky, tender texture and subtle flavor, Chilean sea bass is a favorite among seafood lovers. The simplicity of this dish allows the natural qualities of the fish to shine, enhanced by fresh herbs and zesty lemon. Whether it’s a special occasion or a weeknight dinner, this recipe is sure to elevate your dining experience.
Why You’ll Love This Recipe

This Baked Chilean Sea Bass is a delightful combination of flavors and textures. The fish is moist and flaky, cooked to perfection with a golden crust. The garlic and fresh oregano bring out the best in the sea bass, while the beurre blanc sauce adds a rich, buttery finish. Plus, it’s a health-conscious option, packed with omega-3 fatty acids and protein. You’ll love how easy it is to prepare, leaving you more time to enjoy your meal with family and friends.
Ingredient Checklist
- 2 Chilean sea bass fillets, skin on or off, thawed if frozen
- 1/2 teaspoon salt and pepper, or to taste
- 1 teaspoon olive oil
- 2 garlic cloves, thinly sliced
- 4 lemon slices
- 2 tablespoons fresh oregano, or any herb of your choice
- 2 teaspoons unsalted butter
- 1/4 cup beurre blanc sauce
Hardware & Gadgets
- Oven-safe baking dish – to bake the fish evenly.
- Sharp knife – for slicing garlic and preparing the fish.
- Cutting board – to provide a stable surface for prep.
- Measuring spoons – for accurate ingredient measurements.
- Spatula – to handle the fish delicately after baking.
Baked Chilean Sea Bass Made Stepwise

Step 1: Preheat the Oven
Start by preheating your oven to 400°F (200°C). This ensures that your fish cooks evenly and develops a beautiful crust.
Step 2: Prepare the Fish
Rinse the Chilean sea bass fillets under cold water and pat them dry with paper towels. Season both sides with salt and pepper to taste.
Step 3: Sauté the Garlic
In a small skillet, heat the olive oil over medium heat. Add the thinly sliced garlic and sauté until fragrant and golden, about 1-2 minutes. Be careful not to burn the garlic, as it can turn bitter.
Step 4: Arrange the Fish
In your oven-safe baking dish, arrange the sea bass fillets skin-side down (if the skin is on). Pour the sautéed garlic and olive oil mixture over the fish, ensuring it’s evenly coated. Place the lemon slices on top of the fillets.
Step 5: Add Fresh Herbs and Butter
Sprinkle the fresh oregano over the fish, and add small dots of unsalted butter on top of the fillets. This will add richness to the dish as it bakes.
Step 6: Bake the Fish
Place the baking dish in the preheated oven and bake for 15-20 minutes, or until the fish flakes easily with a fork and is opaque in the center.
Step 7: Serve with Beurre Blanc Sauce
Once the fish is done, remove it from the oven and drizzle with beurre blanc sauce before serving. This adds a delightful tangy richness that pairs perfectly with the fish.
Allergy-Friendly Swaps

- For a dairy-free option, substitute the unsalted butter with vegan butter or olive oil.
- If you’re allergic to garlic, you can omit it or use garlic-infused oil for flavor.
- Feel free to swap fresh oregano with other herbs like thyme or parsley based on your preference.
Watch Outs & How to Fix
- Overcooking: Keep an eye on the fish as it bakes to prevent it from drying out. The ideal cooking time will depend on the thickness of your fillets.
- Fish Sticking: If the fish sticks to the baking dish, ensure it’s well-oiled before adding the fillets, or use parchment paper to prevent sticking.
- Flavor: If the fish tastes bland, consider adding more seasoning or a squeeze of fresh lemon juice just before serving.
Shelf Life & Storage
Leftover Baked Chilean Sea Bass can be stored in an airtight container in the refrigerator for up to 2 days. Reheat gently in the oven or microwave, but be cautious not to overcook it again. If you have leftover beurre blanc sauce, it can be stored separately for up to 3 days in the fridge.
Quick Questions
Can I use frozen Chilean sea bass for this recipe?
Yes! Just make sure to thaw it completely before cooking for even results.
What can I serve with Baked Chilean Sea Bass?
This dish pairs beautifully with a fresh salad, steamed vegetables, or a light grain such as quinoa or rice.
Is Chilean sea bass sustainable?
Chilean sea bass is often considered overfished. Look for sustainably sourced options or alternatives like cod or halibut if you wish to be environmentally conscious.
Can I make this dish without beurre blanc sauce?
Absolutely! You can drizzle the fish with a simple lemon and olive oil dressing or serve it with a fresh salsa for a lighter option.
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In Closing
This Baked Chilean Sea Bass recipe is a wonderful way to enjoy a delicious and healthy meal without spending hours in the kitchen. With its vibrant flavors and visually appealing presentation, it is perfect for both family dinners and entertaining guests. The flaky texture of the fish, combined with the aromatic herbs and buttery sauce, creates a dish that is not only satisfying but also impressive. So, gather your ingredients, preheat your oven, and get ready to indulge in a beautiful seafood feast!

Baked Chilean Sea Bass
Ingredients
Equipment
Method
- Start by preheating your oven to 400°F (200°C). This ensures that your fish cooks evenly and develops a beautiful crust.
- Rinse the Chilean sea bass fillets under cold water and pat them dry with paper towels. Season both sides with salt and pepper to taste.
- In a small skillet, heat the olive oil over medium heat. Add the thinly sliced garlic and sauté until fragrant and golden, about 1-2 minutes. Be careful not to burn the garlic, as it can turn bitter.
- In your oven-safe baking dish, arrange the sea bass fillets skin-side down (if the skin is on). Pour the sautéed garlic and olive oil mixture over the fish, ensuring it’s evenly coated. Place the lemon slices on top of the fillets.
- Sprinkle the fresh oregano over the fish, and add small dots of unsalted butter on top of the fillets. This will add richness to the dish as it bakes.
- Place the baking dish in the preheated oven and bake for 15-20 minutes, or until the fish flakes easily with a fork and is opaque in the center.
- Once the fish is done, remove it from the oven and drizzle with beurre blanc sauce before serving. This adds a delightful tangy richness that pairs perfectly with the fish.
Notes
- For a dairy-free option, substitute the unsalted butter with vegan butter or olive oil.
- If you’re allergic to garlic, you can omit it or use garlic-infused oil for flavor.
- Feel free to swap fresh oregano with other herbs like thyme or parsley based on your preference.
