Provençal Fish Gratin – A Flavorful and Easy Recipe

This Provençal Fish Gratin is a light, flavorful dish inspired by the sun-soaked cuisine of southern France. Tender white fish is baked in a fragrant tomato and bell pepper sauce infused with garlic, onion, and fresh herbs. Simple yet deeply satisfying, this recipe is perfect for a wholesome weeknight dinner or a relaxed weekend meal.

Why You’ll Love This Recipe

• It’s healthy, balanced, and packed with Mediterranean flavor

• Quick and easy to prepare with everyday ingredients

• The sauce can be made in advance to save time

• Fresh herbs and vegetables make it feel vibrant and homemade

• Easily adaptable with your choice of white fish or additional vegetables

Ingredients

(Tip: You’ll find the full list of ingredients and measurements in the recipe card below.)

• 4 portions of white fish (such as cod, pollock, or hake)

• 400 g (about 14 oz) crushed tomatoes or tomato pulp

• 2 red bell peppers

• 1 large red onion

• 2 garlic cloves

• 2 bay leaves

• 2 sprigs fresh rosemary

• 2 sprigs fresh thyme

• Olive oil

• Salt and pepper

Directions

1. Cut the red bell peppers into thin strips. Finely slice the red onion and mince the garlic.

2. In a large skillet, heat a drizzle of olive oil over medium heat. Sauté the onion and garlic for about 5 minutes until softened.

3. Add the bell peppers, crushed tomatoes, bay leaves, rosemary, and thyme. Season with salt and pepper. Let simmer for 15 minutes, stirring occasionally.

4. Lightly oil a baking dish and place the white fish portions inside. Pour the warm Provençal sauce over the fish.

5. Bake in a preheated oven at 200°C (390°F) for 20 minutes, or until the fish is cooked through and flakes easily.

6. Serve hot, accompanied by rice, steamed potatoes, or crusty bread.

Servings and timing

• Servings: 4

• Prep time: 15 minutes

• Cook time: 20 minutes

• Total time: 35 minutes

Variations

• Swap white fish for salmon for a richer flavor

• Add black olives or capers for a salty Mediterranean twist

• Use dried herbs if fresh ones aren’t available (1 tsp each)

• Add zucchini or eggplant for extra vegetables

• Top with grated cheese or breadcrumbs before baking for a crispy finish

• Use fresh peeled tomatoes in season instead of canned

• Spice it up with a pinch of chili flakes or Espelette pepper

• Serve it over pasta or couscous for a heartier meal

• Add a splash of white wine to the sauce for extra depth

• Finish with a squeeze of fresh lemon juice before serving for brightness

Storage/Reheating

Store leftovers in an airtight container in the refrigerator for up to 2 days. Reheat in a preheated oven at 160°C (320°F) for 10–15 minutes or microwave in short intervals until warmed through. Freezing is not recommended as the texture of the fish may change.

FAQs

Can I prepare the sauce ahead of time?

Yes, the Provençal tomato sauce can be made up to 2 days in advance and stored in the fridge.

What type of fish works best?

Cod, pollock, or hake are ideal as they hold up well in baking and have a mild flavor.

Can I use frozen fish?

Yes, but make sure it’s fully thawed and patted dry before using.

Can I substitute dried herbs?

Yes, you can replace fresh rosemary and thyme with 1 teaspoon each of dried herbs.

How do I keep the fish from overcooking?

Bake just until the fish flakes easily with a fork, usually 20 minutes at 200°C.

Is this dish gluten-free?

Yes, it’s naturally gluten-free as long as no breadcrumbs or gluten-containing accompaniments are added.

What can I serve with it?

This dish pairs beautifully with rice, potatoes, couscous, pasta, or a green salad.

Can I make it vegetarian?

Yes, substitute the fish with grilled eggplant or tofu slices for a plant-based version.

Can I add cheese on top?

Absolutely. A sprinkle of grated Parmesan or Gruyère before baking adds a golden crust.

Can I add wine to the sauce?

Yes, a small splash of dry white wine during the sauce simmering stage adds depth and richness.

Conclusion

This Provençal Fish Gratin is a celebration of Mediterranean simplicity and flavor. With its fragrant tomato sauce, tender fish, and aromatic herbs, it brings a touch of sunshine to any meal. Whether you’re looking for something light and healthy or a comforting dinner with southern flair, this dish delivers every time.

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