If you love fish as much as I do, this baked whole catfish will make a great seafood dinner for your meal rotation. This easy recipe is super flavorful and keto-friendly!

❤️ Why you'll love it
My family absolutely loves this catfish recipe and yours will too! We make it about twice a month, and it never lasts more than a day. We literally don’t stop eating it once we start until it’s all gone. It's coated in a mixture of flavor-packed vegetables and fresh herbs that add tons of fresh flavor to every bite. It's sure to be a new family favorite!
🥘 Equipment Used
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To prepare this easy oven baked catfish recipe, you'll need a baking sheet, knife, some aluminum foil, and a high-powered blender to prepare the flavorful marinade.
🧾 Ingredients Used

- Catfish: This recipe calls for whole catfish instead of catfish fillets. Check your local Asian, Mexican, or African grocery store for frozen or fresh catfish. Be sure to remove the bones before serving.
- Olive oil: Use a little oil to turn the vegetable puree into a delectable sauce.
- Vegetables: Blend red bell pepper, garlic, onion, ginger root, and habanero pepper to create a potent, flavorful marinade that soaks into every bite of whole baked catfish.
- Herbs: Fresh thyme, dill, and sage have so much more flavor than dried herbs, but you can use those instead in a pinch.
🔪 How To Make This Recipe
How to Prepare Catfish
If you buy the fish whole, depending on how much it has been cleaned, you might have to do a bit of cleaning yourself.
To cut down on prep time, I like to buy the fish sliced vertically with the insides completely cleaned out.
To prepare the catfish for baking, use lemon to clean the fish in and out by completely squeezing the lemon juice on the fish and rubbing it in. Rinse thoroughly when done.
How To Bake A Whole Catfish
- Preheat oven to 400.
- Blend the red bell pepper, habanero and onions.
- Add the ginger, garlic and herbs, thyme, dill, sage, salt, and blend.
- Clean the fish using lemon to reduce the fishy smell.
- Make shallow slices on the side of the fish, about 3 - 4 on both sides.
- Scoop about half of the pureed mixture into these holes and in the center slit.
- Keep the other half to use later.
- Completely wrap the fish in foil and place in bottom rack of oven for 45 mins.
- Optional: Add ¼ cup of olive oil to a pan on medium heat, then add the pureed mix and stir for 5mins.
- Open the foil at the top and leave the fish in for another 5 minutes.
- Bring out the fish from the oven and garnish with the sauce or drizzle with olive oil if you don’t want to use the sauce.

🥫 Storing and Reheating
This will keep for a few days in the fridge, but if you have fish lovers in your house, then it will probably last one day or two at the most. To keep it fresh, store it in an airtight container in the fridge for 2-3 days. To reheat, you can either microwave your leftovers for about a minute or pop them in the air fryer at 350 F for 5-7 minutes or until fully warmed.
💭 Tips and Variations
- You can reduce how much pepper you use in this recipe according to your preference. Or you can omit it altogether.
- I use thyme, dill, and sage, but you can use any herbs of your choice.
- Don't skip cleaning the fish with lemon. This helps to clean the fish and reduce its sliminess, and also cuts down on the strong fishy smell, which might be a bother to some.
- The fish has to be wrapped in foil before baking as this helps to trap the juices and keep them moist.
- If you like really spicy food, you can also add a dash of cayenne pepper to the vegetable mixture.
- Feel free to garnish with some fresh lemon slices, a little fresh parsley, or a dash of hot sauce (like this Pili Pili sauce) for extra flavor!

🍽️ What can I eat this recipe with?
This whole baked catfish tastes great with a veggie dish or salad on the side, like Brussels sprouts, roasted cauliflower, or keto coleslaw. This bacon broccoli salad will also be a great addition!
👩🍳 Frequently asked questions
To bake a whole catfish in the oven, set your oven temperature to 400 degrees. To know when your fish is done, use an instant read meat thermometer. The meat should be at a temperature of 145 degrees F, according to the USDA.
Yes! I prefer to keep the skin on catfish for this whole baked catfish recipe. This holds the tender meat together and makes it easy to marinate the whole fish at once in an aromatic blend of vegetables and fresh herbs.
There are so many ways to prepare catfish from deep frying fillets to pan-frying catfish on the stove and baking the whole fish in the oven. As a catfish enthusiast myself, my favorite preparations are to make whole baked catfish in the oven, air fry catfish steaks, or to add it to soup recipes, like this Fish Pepper Soup or Western African Okra Soup.
📚 Related Recipes
Check out these other delicious seafood recipes!

📖 Recipe

Baked Whole Catfish
Ingredients
- 1 catfish
- ¼ cup olive oil
- ½ red bell pepper
- ½ onions chopped
- 2 garlic cloves minced
- ½ teaspoon ginger root chopped finely
- 1 habanero pepper
- ½ sprig thyme leaves
- ½ sprig dill
- 1 sprig sage
Instructions
- Preheat oven to 400.
- Blend the red bell pepper, habanero and onions.
- Add the ginger, garlic and herbs, thyme, dill, sage, salt, and blend.
- Clean the fish using lemon to reduce the fishy smell.
- Make shallow slices on the fish, about 3 - 4 on both sides.
- Scoop about half of the pureed mixture into these holes and in the center slit.
- Keep the other half to use later.
- Completely wrap the fish in foil and place in bottom rack of oven for 45 mins.
- Optional: Add ¼ cup of olive oil to a pan on medium heat, then add the pureed mix and stir for 5mins.
- Open the foil at the top and leave the fish in for another 5 minutes.
- Bring out the fish from the oven and garnish with the sauce or drizzle with olive oil if you don’t want to use the sauce.
Notes
- You can reduce how much pepper you use in this recipe according to your preference. Or you can omit it altogether.
- I use thyme, dill, and sage but you can use any herbs of your choice.
- Don't skip cleaning the fish with lemon. This helps to clean the fish and reduce its sliminess, and also cuts down on the strong fishy smell, which might be a bother to some.
- The fish has to be wrapped in foil before baking as this helps to trap in the juices and keep them moist.
wow... just look it, I was craving. I want go to kitchen and make it right now. But... I think I will do it tomorrow. thanks you!
I’m loving the low carb spin you put on this and all your recipes. Sounds great!
Thank you!
Wow! This is the first time I have come across a recipe for catfish, I am so interested! I love the idea of the delicious flavours 🙂
Thanks Alexandra! I hope you try it!
Oh wow!! I haven't seen anyone tackle on of these in the kitchen before. This is great!! I love that is is a nice looking dish and you eat it all up until it is gone. The spiciness sounds great and the photos work well too!
Happy Mother's Day to you too! This dish looks flavorful & fabulous! YUM!
Thanks Beth 🙂
I love baked catfish! Looks so delicious and crispy! Can't wait to try this recipe.
Thanks Natalie. Let me know how it turns out.
Looks exceptional! Can't wait to try this!!!
Thank you Bose! Let me know if you do.