July 4, 2026 · 5 min

Crispy Dijon Sea Bass with Garlic Herb Green Beans and Toasted Ciabatta

Dinner5 min2551 cal / serving

This golden-crusted sea bass transforms your weeknight into a gourmet affair! Dijon mustard meets crispy panko in a textural love story, while tender green beans get a buttery herb treatment. The star? A smoky mustard sauce that drizzles like liquid velvet over flaky fish.

Paired with garlic-kissed ciabatta that’s toasted to perfection, this 25-minute masterpiece delivers restaurant elegance without the reservation wait. Your taste buds will thank you for this deliciously sophisticated escape!


Recipe details

Dinner5 min2551 cal / serving2 servings

Nutrition per serving

Calories2551 kcalProtein12.6 gFat239.7 gCarbs90.6 gSugar20.9 gFiber5.7 gSodium2041 mg

Dietary labels

Gluten-free: noLactose-free: noDairy-free: no

Allergen check

Gluten / wheat: containsMilk / dairy: containsEgg: containsFish: containsShellfish: not detectedPeanut: not detectedTree nuts: not detectedSoy: containsSesame: not detectedMustard: containsCelery: not detectedSulphites: not detectedLupin: not detectedMolluscs: not detected

Values are calculated per serving from ingredient amounts and the ingredient nutrition reference per 100g. Allergen and diet labels use available ingredient metadata and name matching; always check product labels for strict diets or allergies. Some ingredient amounts or nutrition values were incomplete, so this is marked as a partial estimate.


Ingredients

Green Beans6 ounce Green BeansView ingredient guide
Ciabatta1 unit CiabattaView ingredient guide
Oven-Ready Tray2 unit Oven-Ready TrayView ingredient guide
Smoky Mustard1 ounce Smoky MustardView ingredient guide
Mayonnaise2 tablespoon MayonnaiseView ingredient guide
Panko Breadcrumbs0.25 cup Panko BreadcrumbsView ingredient guide
Chilean Sea Bass10 ounce Chilean Sea BassView ingredient guide
Dijon Mustard2 teaspoon Dijon MustardView ingredient guide
Cooking Oil4 teaspoon (tsp) Cooking OilView ingredient guide
Saltteaspoon (tsp) SaltView ingredient guide
Black Pepperteaspoon (tsp) Black PepperView ingredient guide

Instructions

  1. Adjust rack to top position (top and middle for 4 servings) and preheat oven to 450°F. Wash and dry produce. Trim green beans if necessary; toss in one oven-ready tray with a drizzle of oil, salt and pepper. (For 4, divide green beans between two trays, using a drizzle of oil in each.)
  2. In a small bowl, combine panko with a drizzle of oil (large drizzle for 4), salt and pepper.
  3. Pat sea bass dry with paper towels; season with salt and pepper. Drizzle skin sides with oil; rub to coat. Place sea bass, skin sides down, in remaining oven-ready tray. (For 4, divide between two trays.) Evenly spread tops with Dijon mustard; mound with panko mixture, pressing firmly to adhere. Reserve bowl.
  4. Place trays side by side on top rack (ensure oven is preheated); bake until green beans are tender and fish is cooked through, 10-15 minutes. (For 4, bake fish on top rack and green beans on middle rack, swapping positions halfway.)
  5. Meanwhile, wash and dry bowl used for panko. Combine smoky mustard and mayonnaise in same bowl; stir in water 1 teaspoon at a time until mixture reaches a drizzling consistency.
  6. When fish has 5 minutes remaining, halve and toast ciabatta. Spread with half the garlic herb butter. Halve each ciabatta half on a diagonal. (For 4, halve each of the four ciabatta halves on a diagonal.)
  7. Once green beans are done, carefully toss with remaining garlic herb butter.
  8. Divide sea bass, green beans and garlic bread between plates. Drizzle smoky mustard sauce over fish and serve.

Recipe Tips

For extra crispy panko, press the breadcrumb mixture firmly onto the fish.

If you don’t have oven-ready trays, use a baking sheet lined with parchment paper.

Adjust the smoky mustard sauce consistency by adding water a little at a time.

FAQ

Can I use another type of fish?

Yes, you can substitute Chilean sea bass with other firm white fish like cod or halibut. Adjust cooking time as needed.

What can I use instead of ciabatta?

Any crusty bread like sourdough or a baguette works well. Toast until golden.

How do I store leftovers?

Store leftovers in an airtight container in the refrigerator for up to 2 days. Reheat in the oven to maintain crispiness.

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