Mediterranean Baked Fish Recipe

This Mediterranean Baked Fish Recipe is a simple way to turn fresh white fish into a flavorful dinner. The fish is baked with juicy cherry tomatoes, Kalamata olives, red onion, garlic, lemon, and dried herbs. The result is tender, flaky fish with a bright Mediterranean flavor in every bite.

With only about 10 minutes of prep and 20 minutes in the oven, this easy fish dinner is perfect for busy weeknights. Serve it with rice, couscous, quinoa, or crusty bread for a complete meal.

Why You’ll Love This Mediterranean Baked Fish

This baked fish recipe uses simple ingredients that work together without making the dish feel heavy. Lemon adds freshness, while garlic and herbs bring a savory taste to the fish.

Here are a few reasons to add it to your dinner rotation:

Ready in about 30 minutes from start to finish.
Uses one baking dish for easy cleanup.
Works with several types of firm white fish.
Naturally gluten-free when served with gluten-free sides.
Includes vegetables, herbs, lemon, and healthy fats.
Easy enough for a weeknight dinner but attractive enough for guests.
The fish stays tender while the tomatoes become juicy and flavorful.

Ingredients You’ll Need

For 4 servings, gather the following ingredients:

4 white fish fillets: Cod, haddock, halibut, or sea bass, about 5–6 ounces each.
2 tablespoons olive oil: Helps keep the fish moist and adds a smooth flavor.
1 lemon: Use both the zest and juice for a fresh citrus taste.
3 garlic cloves: Mince them finely so the flavor spreads through the dish.
1 teaspoon dried oregano: Adds classic Mediterranean seasoning.
1 teaspoon dried thyme or Italian seasoning: Gives the fish a warm herb flavor.
½ teaspoon sea salt: Enhances the other ingredients.
¼ teaspoon black pepper: Adds mild heat and balance.
1 cup cherry tomatoes: Cut them in half so they release their juices while baking.
½ cup Kalamata olives: Pit and halve them for easier eating.
½ red onion: Slice it thinly for even cooking.
2 tablespoons fresh parsley: Use it as a fresh finishing garnish.
2 tablespoons capers, optional: Add them for extra briny flavor.

How to Make Mediterranean Baked Fish

Step 1: Preheat the Oven

Preheat your oven to 375°F (190°C). Lightly grease a baking dish with a small amount of olive oil if needed.

Use a baking dish large enough to hold the fish in a single layer.
Avoid stacking the fillets because they need even heat to cook properly.

Step 2: Make the Lemon Herb Marinade

Add olive oil, lemon juice, lemon zest, minced garlic, oregano, thyme, sea salt, and black pepper to a small bowl.

Whisk everything together until the ingredients are well combined.

The lemon adds acidity and freshness.
Garlic provides a savory base.
Oregano and thyme give the fish its Mediterranean character.
Olive oil helps carry the herbs and garlic across the fish.

Step 3: Prepare the Fish

Pat the fish fillets dry with paper towels. Place them in the prepared baking dish in a single layer.

Pour the lemon herb mixture evenly over the fish.

Patting the fish dry helps prevent excess water from collecting in the dish.
Make sure each fillet gets some of the seasoning mixture.
Fresh or fully thawed fish works best for this method.

Step 4: Add the Mediterranean Vegetables

Scatter the halved cherry tomatoes, Kalamata olives, and sliced red onion around the fish. Add capers if you want a stronger salty, briny flavor.

Try to keep most of the vegetables around the fillets rather than covering the fish completely.

As the dish bakes, the tomatoes soften and release their juices. Those juices mix with the lemon, garlic, herbs, and olive oil to create a flavorful sauce.

Step 5: Bake the Fish

Place the uncovered baking dish in the preheated oven.

Bake for approximately 18–20 minutes, depending on the thickness of the fillets.

The fish is ready when it flakes easily with a fork and reaches an internal temperature of 145°F (63°C).

Thicker fillets may need a little more time.
Thin fillets can cook faster, so start checking them around 18 minutes.
Use a food thermometer for the most reliable doneness check.

Step 6: Garnish and Serve

Remove the baked fish from the oven and sprinkle fresh chopped parsley over the top.

Serve immediately with your favorite side.

Good options include:

Steamed rice
Couscous
Quinoa
Roasted vegetables
Greek salad
Crusty bread

Spoon some of the warm tomato, olive, and lemon juices over each serving for extra flavor.

Tips for the Best Baked Fish

A few simple details can make this recipe even better.

Choose firm fish: Cod, haddock, halibut, and sea bass all work well because they hold their shape during baking.

Dry the fillets first: Removing excess moisture helps the seasoning stick and prevents the dish from becoming watery.

Do not overbake: Fish can become dry when cooked too long. Start checking the thickest fillet near the end of the suggested cooking time.

Use fresh lemon: Fresh lemon juice and zest give the dish a brighter flavor than bottled lemon juice.

Keep the vegetables bite-sized: Halved tomatoes and thinly sliced onion cook evenly alongside the fish.

Serve right away: Baked white fish has its best texture when served fresh from the oven.

Easy Variations

You can adjust this recipe without changing its basic cooking method.

For a briny flavor, increase the Kalamata olives or add the optional capers. For more freshness, add extra parsley after baking.

You can also add ¼ cup of dry white wine to the baking dish before it goes into the oven. The wine adds moisture and a subtle depth of flavor.

If you prefer more vegetables, add a small amount of sliced bell pepper or zucchini. Cut them thinly so they have enough time to soften during baking.

Storage and Meal Prep

You can prepare the vegetables and lemon herb mixture ahead of time and keep them refrigerated until you are ready to cook.

For the best texture, bake the fish fresh rather than cooking it several days in advance. Leftover baked fish should be refrigerated in an airtight container and reheated gently to help prevent it from drying out.

When using frozen fish, thaw it completely in the refrigerator and pat it dry before preparing the recipe.

Nutrition Information

The approximate nutrition per serving is:

Calories: 290 kcal
Protein: 30–35 g
Fat: 15 g
Saturated fat: 2 g
Carbohydrates: 7 g
Fiber: 2 g
Sugars: 3 g
Sodium: About 520 mg
Omega-3 fatty acids: High, depending on the fish selected

These values are estimates and can change based on the type of fish, amount of olive oil, olives, and other ingredients used.

Recipe Details

Prep Time: 10 minutes
Cook Time: 20 minutes
Total Time: 30 minutes
Servings: 4
Cooking Temperature: 375°F (190°C)
Fish Doneness: 145°F (63°C)

Frequently Asked Questions

What fish is best for Mediterranean baked fish?

Cod, haddock, halibut, sea bass, and snapper are excellent choices because they are firm and hold together well during baking.

Can I use frozen fish?

Yes. Thaw frozen fish completely in the refrigerator, then pat the fillets dry before seasoning and baking.

Is Mediterranean baked fish gluten-free?

Yes, the recipe itself is naturally gluten-free. Choose gluten-free sides and seasonings if you need to avoid gluten completely.

Can I use another type of fish?

Yes. Firm white fish with similar thickness can work well, but cooking time may change depending on the fillet size.

Can I prepare this recipe ahead of time?

You can prepare the vegetables and marinade ahead of time, but baking the fish just before serving gives the best texture.

What should I serve with baked fish?

Rice, couscous, quinoa, roasted vegetables, Greek salad, and crusty bread all pair well with the lemony Mediterranean flavors.

Can I add white wine?

Yes. Add about ¼ cup of dry white wine to the baking dish before baking for extra moisture and flavor.

How do I know when the fish is done?

The fish should flake easily with a fork and reach an internal temperature of 145°F (63°C) at the thickest point.

Final Thoughts

This Mediterranean Baked Fish Recipe brings together tender white fish, bright lemon, garlic, tomatoes, olives, onion, and herbs in one easy baking dish. It takes about 30 minutes to prepare, making it a practical choice for a flavorful family dinner.

For the best results, use fresh ingredients, avoid overbaking the fish, and serve it immediately with a simple side such as rice, quinoa, roasted vegetables, or a Greek salad.