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Home » Recipes » Main Dishes

Baked Whole Tilapia

Estefania
Modified: Dec 10, 2025 · Published: Dec 22, 2024 by Estefania · This post may contain affiliate links · 1 Comment

Baked whole tilapia is easier than it looks, just add garlic, lemon, bay leaves, and sherry wine for a flavorful meal. It's become a go-to in my kitchen for something quick and comforting.

Recipe
Baked whole tilapia with lemon slices on top, served on a white platter over roasted potatoes and onions

How to Bake Tilapia in the Oven for Perfectly Flaky Fish Every Time

This baked whole tilapia comes out juicy, flaky, and full of flavor. The potatoes turn golden as they soak up the sherry wine and extra virgin olive oil, making every bite rich and satisfying. For anyone wondering how to cook whole fish tilapia, this recipe shows how impressive and delicious a simple dish can be when it's served at the table.

Of all the whole tilapia recipes I've tried, this one always stands out. The crispy skin, juicy fish, and perfectly roasted potatoes make it a go-to tilapia in oven recipe I rely on. It's a healthy, fuss-free recipe for whole tilapia that feels just right for both weeknight dinners and special occasions.

Baked whole tilapia

Why You'll Love This Baked Whole Tilapia

  • The Prep is Simple: Scoring, stuffing, and tossing everything together takes just a few minutes. 
  • Customizable: The recipe is flavorful on its own, but feel free to add your favorite herbs, spices, or veggies. You can even stuff the fish with herbs, tomatoes, or olives for extra flavor. 

Baked Whole Tilapia Ingredients

You'll find the exact measurements in the recipe card, but here's a closer look at a few of the ingredients and why I use them.

Ingredients
  • Whole Tilapia with Aromatics: A fresh medium tilapia is always my choice. I love how scoring it lets the lemon slices, garlic cloves, and bay leaves infuse every bite with flavor.
  • Seasoning: Salt and black pepper may be simple, but for me they're essential, they wake up the natural taste of both the fish and the vegetables.
  • Potatoes and Onion: Roasted potatoes with onion are the heart of this dish. I look forward to them every time because they soak up all those savory juices.
  • Olive Oil and Sherry Wine: A drizzle of extra virgin olive oil and a splash of sherry wine are what make this recipe shine, rich, slightly sweet, and full of depth.

How to Bake Whole Tilapia

You can find the complete printable recipe with measurements below, but for now, here's a quick overview of how it goes:

How to Baked Whole Tilapia

1. Make diagonal cuts on both sides of the tilapia for even cooking. Rub salt and pepper into the fish, including the cuts.

2. Stuff the fish cavity with lemon slices, garlic, and bay leaves, then refrigerate.

3. In a baking dish, mix diced potatoes and onion with salt, pepper, extra virgin olive oil, and sherry wine.

4. Bake in a fan oven at 200°C (400°F) or 180°C (356°F) for fan-forced for 40 minutes.

How to Bake Whole Tilapia

5. Put the seasoned tilapia on the potato mixture in the baking dish.

6. Pour 40 ml of sherry and 2 tablespoon of extra virgin olive oil over the fish.

7. Return the dish to the oven and bake for 30 more minutes, or until the fish is cooked and the potatoes are golden.

8. Serve the baked whole tilapia with fresh herbs, if desired, alongside the sherry potatoes and onions.

Baked whole tilapia with lemon slices on top, served on a white platter over roasted potatoes and onions.

What to Serve with Baked Whole Tilapia

This baked whole tilapia is wonderfully easy and turns out incredibly juicy, especially alongside the flavorful baked potatoes and onions. I like to serve it with warm ciabatta or garlic bread to soak up the juices, and sometimes add a fresh salad. For dessert, chocolate mousse or tiramisu makes the perfect finish.

Tips for Recipe Success

Let the Fish Rest After Baking: Once out of the oven, I like to let the baked tilapia rest for 5-10 minutes. It helps the juices settle and makes the fish easier to serve.  

Choose the Right Pan: I use a large, shallow baking dish so the fish and potatoes aren't crowded. It helps everything roast instead of steaming.  

Watch the Liquid Level: If the wine evaporates too quickly while baking, I sometimes drizzle a little warm water or broth over the potatoes to keep them moist.  

Try These Fish Recipes Next!

  • Pan Fried Red Snapper
    Pan Fried Red Snapper
  • Baked Salmon in a foil
    Baked Salmon in Foil
  • Baked Cod
    Easy Baked Cod
  • Oven Baked Trout
    Oven Baked Trout 

Recipe

Baked whole tilapia

Juicy Baked Whole Tilapia

This baked whole tilapia is cooked to perfection with golden potatoes and a splash of sherry wine. It's a simple one-pan meal that stays juicy, flavorful, and wonderfully fresh.
5 from 1 vote
Print Rate
Course: Main Course
Cuisine: Mediterranean, Spanish
Prep Time: 10 minutes minutes
Cook Time: 1 hour hour 10 minutes minutes
Total Time: 1 hour hour 20 minutes minutes
Servings: 2
Calories: 474
Author: Estefania

Ingredients 

  • 1 Whole Tilapia
  • 1 teaspoon Salt
  • ½ teaspoon Freshly Ground Black Pepper
  • 4 slices Lemon
  • 4 Cloves Garlic
  • 2 Bay leaves
  • 250 g Potatoes
  • 1 Onion
  • 1 teaspoon Salt
  • ¼  teaspoon Freshly Ground Black Pepper
  • 2 tablespoon Extra Virgin Olive Oil
  • 80 ml Sherry Wine - For Potatoes
  • 40 ml Sherry Wine - For Tilapia
  • 2 tablespoon Extra Virgin Olive Oil
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Instructions

  • Score the tilapia with diagonal cuts on both sides for even cooking. Rub the fish with salt and black pepper, making sure to season inside the cuts.
  • Insert lemon slices, garlic cloves, and bay leaves into the cavity of the fish. Refrigerate the fish.
  • In a baking dish, toss diced potatoes and sliced onion with salt, black pepper, 2 tablespoons extra virgin olive oil, and 80 ml sherry wine.
  • Bake the potato mixture in a preheated oven at 400°F (200°C) or 356°F (180°C) for fan-forced for 40 minutes.
  • Place the seasoned tilapia on top of the baked potatoes. Drizzle 40 ml sherry wine and 2 tablespoons extra virgin olive oil over the fish.
  • Return the dish to the oven and bake for another 30 minutes, or until the fish is cooked through and the potatoes are golden.
  • Serve hot with the sherry-flavored potatoes and onions, garnished with fresh herbs if desired.

Notes

Score the Fish Well: I like to make 3-4 deep diagonal cuts on each side of the whole tilapia so it cooks evenly and soaks up all the seasoning.
Stuff Generously: I always tuck the lemon slices, garlic, and bay leaves firmly inside the cavity; it makes the whole tilapia fish smell amazing while it bakes.
Toss the Potatoes Thoroughly: I give the potatoes and onion a good mix with the extra virgin olive oil and sherry wine so every piece is coated and roasts evenly.
Bake in Two Steps: I like to pre-bake the potatoes first; this way they come out perfectly golden without overcooking the fish.
Chill the Fish Before Baking: I usually refrigerate the stuffed tilapia while the potatoes are in the oven. It gives the flavors time to settle into the tilapia. 

Nutrition

Calories: 474kcal | Carbohydrates: 31g | Protein: 21g | Fat: 30g | Saturated Fat: 4g | Polyunsaturated Fat: 3g | Monounsaturated Fat: 21g | Cholesterol: 43mg | Sodium: 2386mg | Potassium: 942mg | Fiber: 4g | Sugar: 4g | Vitamin A: 18IU | Vitamin C: 38mg | Calcium: 60mg | Iron: 2mg

Nutritional information is based on third-party calculations and should be considered an estimate only. Actual nutritional content will vary based upon brands used, measuring methods, cooking method, portion sizes, and more.

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  • Oven-baked harissa salmon fillet glazed with spicy harissa sauce, garnished with parsley, served with lemon slices on a green plate.
    Harissa Salmon 
  • Chicken Mushroom Risotto
    Chicken Risotto with Mushrooms
  • Roast Leg of Lamb
    Garlic & Rosemary Roast Leg of Lamb (Easy Oven-Baked)

Comments

  1. John says

    December 22, 2024 at 10:09 am

    5 stars
    Wow! This recipe was a real crowd-pleaser. My guests were amazed at how easy it was to bake a whole fish. We'll definitely be making this again for our next gathering.

    Log in to Reply
5 from 1 vote

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Image of Estefania

Hi, I'm Estefania!

I love to cook simple & easy recipes that are inspired by my Spanish culture and travel around the world. For simple and easy recipes with an occasional twist, you’re in the right place!

About Me

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