Mediterranean Fish Bake is a vibrant, wholesome dish that combines tender white fish with juicy tomatoes, colorful bell peppers, onions, olives, garlic, herbs, and a splash of lemon. Everything is baked together in one dish, allowing the fresh ingredients to create a light yet flavorful sauce that perfectly complements the fish.

Inspired by the sunny coastal cuisines of Greece, Italy, and Southern France, this easy one-pan meal is ideal for busy weeknights, family dinners, or elegant entertaining. Served with crusty bread, rice, couscous, or roasted potatoes, it's a satisfying recipe that celebrates the simplicity of Mediterranean cooking.

Why You'll Love This Recipe

  • Fresh Mediterranean flavors
  • Healthy, high-protein meal
  • Easy one-pan preparation
  • Ready in under an hour
  • Naturally gluten-free
  • Rich in vegetables
  • Perfect for family dinners or entertaining

What Is Mediterranean Fish Bake?

Mediterranean Fish Bake is an oven-baked seafood casserole featuring:

  • Firm white fish fillets
  • Cherry tomatoes
  • Bell peppers
  • Red onions
  • Garlic
  • Kalamata olives
  • Olive oil
  • Lemon
  • Fresh herbs
  • Optional crumbled feta cheese

The vegetables roast into a naturally flavorful sauce while the fish remains moist and flaky.

Best Fish for This Recipe

Choose firm fish that holds its shape during baking, such as:

  • Cod
  • Haddock
  • Halibut
  • Sea bass
  • Snapper
  • Grouper
  • Mahi-mahi
  • Tilapia
  • Barramundi

Fresh or fully thawed frozen fillets both work well.

Preparation Time

  • Prep Time: 20 minutes
  • Cook Time: 30–35 minutes
  • Total Time: 55 minutes
  • Servings: 4
  • Difficulty: Easy

Ingredients

For the Fish

  • 4 firm white fish fillets (about 180–200 g each)
  • 2 tablespoons extra virgin olive oil
  • 1 tablespoon fresh lemon juice
  • 2 garlic cloves, minced
  • 1 teaspoon sea salt
  • ½ teaspoon freshly ground black pepper
  • 1 teaspoon paprika
  • 1 teaspoon dried oregano

For the Mediterranean Vegetables

  • 250 g cherry tomatoes, halved
  • 1 red bell pepper, sliced
  • 1 yellow bell pepper, sliced
  • 1 large red onion, sliced
  • 3 garlic cloves, thinly sliced
  • 100 g Kalamata olives, pitted
  • 2 tablespoons capers (optional)
  • 2 tablespoons olive oil
  • 1 teaspoon dried thyme
  • 1 teaspoon dried basil
  • Salt and black pepper to taste

For Garnish

  • 100 g crumbled feta cheese (optional)
  • Chopped fresh parsley
  • Fresh basil leaves
  • Lemon wedges

Kitchen Equipment

  • Large baking dish
  • Mixing bowls
  • Sharp knife
  • Cutting board
  • Aluminum foil (optional)

Step 1: Prepare the Fish

Pat the fish fillets dry with paper towels.

In a small bowl, combine:

  • Olive oil
  • Lemon juice
  • Garlic
  • Salt
  • Black pepper
  • Paprika
  • Oregano

Rub the mixture evenly over both sides of the fish.

Set aside while preparing the vegetables.

Step 2: Prepare the Vegetables

Preheat the oven to 200°C (400°F).

In a large bowl, combine:

  • Cherry tomatoes
  • Bell peppers
  • Red onion
  • Garlic
  • Kalamata olives
  • Capers (if using)
  • Olive oil
  • Thyme
  • Basil
  • Salt
  • Black pepper

Toss until evenly coated.

Spread the vegetables in a single layer in a large baking dish.

Roast for 15 minutes to soften and develop their flavors.

Step 3: Add the Fish

Remove the baking dish from the oven.

Nestle the seasoned fish fillets among the roasted vegetables.

Spoon some of the vegetable mixture over each fillet.

Step 4: Bake

Return the dish to the oven.

Bake for 15–20 minutes, depending on the thickness of the fish.

The fish is done when:

  • The flesh flakes easily with a fork.
  • It is opaque throughout.
  • The internal temperature reaches 63°C (145°F).

During the last 5 minutes, sprinkle the feta cheese over the vegetables if using.

Step 5: Garnish and Serve

Remove the dish from the oven.

Sprinkle with:

  • Fresh parsley
  • Fresh basil
  • Extra lemon juice

Serve immediately with lemon wedges on the side.

Serving Suggestions

Mediterranean Fish Bake pairs perfectly with:

  • Lemon herb rice
  • Couscous
  • Garlic roasted potatoes
  • Warm crusty bread
  • Quinoa
  • Buttered green beans
  • Greek salad
  • Roasted asparagus

Chef's Tips

  • Use firm fish fillets so they hold together while baking.
  • Roast the vegetables before adding the fish to ensure they become tender without overcooking the seafood.
  • Fresh herbs provide the brightest flavor, but dried herbs work well too.
  • Avoid overbaking the fish to keep it moist and flaky.
  • Finish with a drizzle of extra virgin olive oil just before serving for added richness.

Delicious Variations

Mediterranean Salmon Bake

Replace the white fish with salmon fillets for a richer flavor and extra omega-3 fatty acids.

Spicy Mediterranean Fish

Add crushed red pepper flakes or sliced fresh chili to the vegetables for a gentle kick.

Creamy Mediterranean Fish Bake

Stir a splash of heavy cream into the vegetables before adding the fish for a creamy sauce.

Seafood Mediterranean Bake

Combine fish with shrimp, mussels, or scallops for a mixed seafood version.

Low-Carb Mediterranean Bake

Serve the dish over cauliflower rice or alongside roasted vegetables instead of grains.

Storage

Refrigerator

Store leftovers in an airtight container for up to 2 days.

Freezer

Although the vegetable mixture freezes well, freshly baked fish has the best texture. If freezing, cool completely and store in an airtight container for up to 2 months.

Reheating Instructions

Oven

Place the fish and vegetables in a baking dish, cover loosely with foil, and reheat at 160°C (320°F) for 10–15 minutes.

Microwave

Heat individual portions on medium power in short intervals to avoid overcooking the fish.

Nutritional Information (Approximate Per Serving)

  • Calories: 360
  • Protein: 38 g
  • Carbohydrates: 12 g
  • Fat: 18 g
  • Saturated Fat: 4 g
  • Fiber: 3 g
  • Sugar: 7 g
  • Sodium: 670 mg
  • Calcium: 120 mg

Frequently Asked Questions

Can I use frozen fish?

Yes. Thaw it completely in the refrigerator and pat it dry before seasoning and baking.

What vegetables can I substitute?

Zucchini, eggplant, mushrooms, fennel, spinach, and artichoke hearts all pair wonderfully with Mediterranean flavors.

Is feta cheese necessary?

No. It adds a salty, creamy finish but can be omitted or replaced with goat cheese or grated Parmesan.

Can I prepare this dish ahead of time?

Yes. Chop the vegetables and season the fish a few hours ahead. Assemble just before baking for the freshest results.

What wine pairs well with Mediterranean Fish Bake?

A crisp, dry white wine such as Sauvignon Blanc, Pinot Grigio, or Vermentino complements the fresh herbs, citrus, and delicate seafood beautifully.

Final Thoughts

Mediterranean Fish Bake is a fresh, colorful, and nutritious one-pan meal that captures the vibrant flavors of coastal Mediterranean cooking. Tender flaky fish, roasted vegetables, olives, garlic, herbs, and lemon come together to create a light yet satisfying dish that's easy enough for weeknight dinners and elegant enough for entertaining. Serve it with crusty bread, rice, or couscous for a wholesome meal that's sure to become a regular favorite.