This easy baked sea bass recipe with spicy mustard and smoked paprika puts dinner on the table in just 30 minutes.
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Sea bass is a delicate, flaky fish with a mild flavor that works well with bold spices. In this recipe, whole grain mustard and smoked paprika combine in a flavorful, buttery coating that enhances the fish without overpowering it. The butter keeps the fillets moist during baking, while the paprika gives them an appetizing warm reddish-gold color. It’s a quick weeknight dinner that comes together with just a few pantry ingredients.
To get started, you set the oven to 350 degrees. While that’s preheating, whisk together some melted butter with whole grain mustard, then stir in the other spices. Coat the fillets thoroughly with the mixture and they’re ready to go in the oven. The moderate temperature and the buttery coating ensure the fish comes out flaky without drying out.
Baked Sea Bass Substitutions:
Sea bass: If you don’t have it, another mild, flaky, and firm-fleshed fish like cod, halibut, or mahi-mahi will work with this recipe.
Whole grain mustard: You can substitute spicy brown mustard for similar flavor or Dijon mustard for a smoother, slightly milder taste.
Butter: Olive oil makes this recipe dairy-free while still coating the fish to keep it from drying out.
Baked Sea Bass Recipe
Whole grain mustard and smoky paprika add robust flavor to this oven-baked sea bass recipe. With just six ingredients and a 20-minute bake time, this is as easy as it gets.
Ingredients:
- 4 sea bass fillets
- 2 tablespoons melted butter or olive oil
- 1 tablespoon whole grain mustard
- 1 teaspoon smoked paprika
- 1/2 teaspoon salt
- 1/4 teaspoon coarse-ground black pepper

Directions:
1. Preheat the oven to 350 degrees and line a small casserole dish with a sheet of parchment paper.
2. In a small bowl, mix the melted butter with the mustard.

3. Add the paprika, salt, and pepper to the mustard mixture and stir to combine.
4. Baste the sea bass fillets on all sides with the mixture. Place fillets in the parchment lined baking dish.

5. Place the baking dish in the preheated oven and bake for 15-20 minutes or until the fish is cooked through.

How to Store Leftover Baked Sea Bass
Fish is best enjoyed fresh, but if you do have some leftover fish, store it in an airtight container in the refrigerator for up to two days.
Printable Recipe for Baked Sea Bass
Baked Sea Bass Recipe
Ingredients
- 4 sea bass fillets
- 2 tablespoons melted butter or olive oil
- 1 tablespoon whole grain mustard
- 1 teaspoon smoked paprika
- 1/2 teaspoon salt
- 1/4 teaspoon coarse-ground black pepper
Instructions
- Preheat the oven to 350 degrees and line a small baking dish with a sheet of parchment paper.
- In a small bowl, mix the melted butter with the mustard.
- Add the paprika, salt, and pepper to the mustard mixture and stir to combine.
- Baste the sea bass fillets on all sides with the mixture. Place fillets in the parchment lined baking dish.
- Place the baking dish in the preheated oven and bake for 15-20 minutes or until the fish is cooked through.
Nutrition

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