Baked Chilean Sea Bass with Pesto and Cherry Tomatoes
Baked Chilean Sea Bass with Pesto and Cherry Tomatoes is an exquisite dish that brings a touch of Mediterranean flair to your dinner table. The tender, buttery flesh of the Chilean sea bass pairs perfectly with the vibrant notes of basil pesto and the fresh burst of cherry tomatoes. This easy-to-follow recipe is not just about tossing ingredients together; it’s a delightful symphony of flavors that transforms a simple meal into something extraordinary. You’ll love how the fish flakes effortlessly, complemented by the aromatic, slightly charred lemon and the glossy pesto that dazzles your palate.

I first discovered this recipe during a summer evening gathering, as friends and family appreciated the effortless sophistication of the dish. Everyone was amazed at how such an elegant meal could be made in just 25 minutes! The flavors were so vibrant, yet the preparation was refreshingly simple. If you’re looking for a quick, crowd-pleasing option for your next dinner party or just a weeknight treat, this baked Chilean sea bass is the answer. Let’s dive into the details together—you won’t want to miss this!
Table of Contents
Why You’ll Love This Recipe
- Simple & Quick: Ready in just 25 minutes, making it perfect for busy weeknights.
- Irresistible Flavor: Tender fish with a rich pesto topping and juicy tomatoes create robust bursts of taste in every bite.
- Eye-Catching Appeal: The vibrant colors of the dish are sure to impress your guests or family.
- Flexible Serving: Great for casual dinners, elegant gatherings, or even a romantic date night.
- Diet-Friendly Options: Naturally gluten-free and can easily be adapted for other dietary needs.
Ingredients You’ll Need
- 2 pounds Chilean sea bass: This fish is prized for its delicate flavor and buttery texture. You can substitute with any white fish fillet, like cod or haddock.
- Extra virgin olive oil: Adds rich flavor and helps the fish cook evenly. Choose a high-quality brand for the best taste.
- Kosher salt: Enhances the natural flavors of the fish without overpowering it.
- Black pepper: Freshly ground for the best flavor.
- 1 teaspoon red pepper flakes or 2 teaspoons Aleppo pepper: Adds a subtle heat for balance; Aleppo pepper offers a milder, fruity taste.
- 1-2 lemons, halved: Lemon juice brightens the dish and enhances the fish’s flavor. Grilling the lemons adds a wonderful smoky depth.
- 1/4 cup basil pesto: Either homemade or store-bought; this flavorful sauce ties the dish together beautifully. Making it from scratch showcases freshness!
- 1 cup grape tomatoes, halved (optional): These add sweetness and a lovely presentation, but can be omitted if you prefer a simpler plate.
How to Make Baked Chilean Sea Bass with Pesto and Cherry Tomatoes
- Prepare Your Oven: Position a rack in the middle of your oven and preheat it to 425°F. Lightly oil a large baking pan for a non-stick finish.
- Season the Fish: Place your 2 pounds of Chilean sea bass in the prepared baking pan. Drizzle with extra virgin olive oil and season generously with kosher salt, black pepper, and red pepper flakes or Aleppo pepper. Cover the pan tightly with foil, creating a tent that doesn’t touch the fish.
- Bake the Fish: Slide the pan into the heated oven for 12 to 15 minutes. The fish is ready when the thickest part flakes easily with a fork, a beautiful sight that guarantees tenderness.
- Char the Lemon: While the fish bakes, heat a grill pan over medium-high heat. Add the lemon halves cut side down and grill for about 2 minutes until they soften and get a lovely char—this step is key for enhancing the lemony flavor!
- Finish and Serve: Once the fish is done, remove it from the oven and uncover it. Squeeze the juice from one of the grilled lemon halves all over the fish for brightness. Spread 1/4 cup of basil pesto generously on top. If you’re using grape tomatoes, toss them with a pinch of salt and a drizzle of olive oil, then arrange them over the fish for a fragrant garnish. Serve immediately, with the remaining lemon on the side for extra squeezing.
Storing & Reheating
Leftover baked Chilean sea bass can be stored in an airtight container in the refrigerator for up to 3 days. For longer storage, wrap it tightly in plastic wrap or aluminum foil and freeze for up to 3 months. Reheat gently in the oven at 350°F for about 10 minutes or until warmed through. Note that the texture may change slightly; refreshing the flavor with a squeeze of fresh lemon juice before serving can revive its deliciousness.
Chef’s Helpful Tips
- Avoid overcooking the fish; keep an eye on the time. Fish can dry out quickly; if using a different white fish, check for doneness earlier.
- To enhance the bold flavors, let your fish sit at room temperature for about 15 minutes before seasoning and baking.
- Fresh lemon juice is best, but bottled works in a pinch. If you’re grilling the lemons, don’t skip this step; it elevates the dish!
- If you prefer a little crunch, consider adding some pine nuts or toasted breadcrumbs on top before baking.
- Feel free to experiment with homemade pesto, swapping in other herbs like arugula or spinach for a unique twist.
This recipe delivers on elegance and flavor with such ease. It’s perfect for impressing guests or simply treating yourself to a fabulous meal at home. Whether served with a side of sautéed vegetables or a light pasta dish, Baked Chilean Sea Bass with Pesto and Cherry Tomatoes is a feast that delights the senses. You’ll find yourself heading back to this recipe time and again.

Recipe FAQs
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Baked Chilean Sea Bass with Pesto and Cherry Tomatoes
Baked Chilean Sea Bass with Pesto and Cherry Tomatoes is a quick and healthy dish that delivers extraordinary flavor. This recipe features tender sea bass topped with aromatic basil pesto and fresh cherry tomatoes, making it ideal for a weeknight dinner that impresses without much effort.
- Prep Time 5 minutes
- Cook Time 20 minutes
- Yield 6 servings 1x
Ingredients
- 2 pounds Chilean sea bass (or another white fish fillet of your choice, thawed if previously frozen)
- Extra virgin olive oil
- Kosher salt
- Black pepper
- 1 teaspoon red pepper flakes or 2 teaspoons Aleppo pepper
- 1-2 lemons, halved
- 1/4 cup basil pesto (homemade or store bought), plus more to your liking
- 1 cup grape tomatoes, halved (optional)
Instructions
- Preheat the oven to 425°F and lightly oil a large baking pan.
- Place the fish in the prepared baking pan and drizzle with olive oil. Season with salt, pepper, and red pepper flakes or Aleppo pepper. Cover the pan tightly with foil, making sure it does not touch the fish.
- Bake for 12 to 15 minutes, or until the thickest part of the fish flakes easily.
- Heat a grill pan over medium-high heat and add the lemons cut side down. Sear briefly until softened and slightly charred, about 2 minutes. Remove and set aside.
- Once the fish is done, remove it from the oven and uncover. Squeeze one of the grilled lemon halves over the fish, then spread the basil pesto on top. If using, toss the grape tomatoes with a pinch of salt and a drizzle of olive oil, arranging them over the fish as a garnish. Serve immediately with the remaining lemon on the side.
Notes
For a zesty kick, experiment with different types of chili flakes or peppers according to your heat preference.
Pair this dish with a light salad or steamed vegetables for a complete meal.
Nutrition
- Serving Size: 1 serving
- Calories: 350
- Sugar: 2g
- Sodium: 550mg
- Fat: 18g
- Saturated Fat: 3g
- Unsaturated Fat: 15g
- Trans Fat: 0g
- Carbohydrates: 8g
- Fiber: 1g
- Protein: 37g
- Cholesterol: 90mg
Nutritional information is an estimate. The nutritional values for your final dish may vary based on measuring differences and products used.




