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Cod with Grapefruit Relish

5 from 6 votes

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Cod with Grapefruit Relish is a fresh and healthy white fish dinner recipe. Pan seared cod is topped with the citrus and basil topping. A perfect spring or summer fast seafood recipe.
The citrus topping piled on top of the fish

This Cod with Grapefruit Relish is a fresh, fast, and easy dinner recipe. Healthy cod is topped with a citrus relish after being pan seared.

The citrus topping piled on top of the fish

I just love fresh and bright flavors, and this white fish recipe is just that!

At first, I was a little skeptical about going this direction with the basil and grapefruit relish. But it is SO good! I could eat a bowl of it just by itself.

The red onion is subtle and brings just a little spice and crunch, with the basil bringing an earthy freshness.

Close up of a fish steak with the citrus topping

What is Cod Like?

Cod is a white, flaky fish. It has a very mild taste which means it is a great fish for a crowd!

It should not smell nor taste strongly of fish.

Cod is very easy to find and typically very affordable.

The fish steak pieces may come in long steaks like salmon, irregular pieces, or as large fillets.

I purchase cod loins which will give you steaks similar to salmon like what you see in the picture. Any shape or size will work, just adjust cooking time accordingly based on thickness.

Top view of two pieces of Cod with Grapefruit Relish on a white plate

Other Fish Options

Want to use something other than cod?

Other white, flaky fish will work as a substitute, such as grouper, mahi mahi, sea bass, or tilapia.

I love to serve this up on grilled swordfish!

A fork digging into Cod with Grapefruit Relish

Cooking the Cod

I have tried a few different ways to cook cod quickly in a pan, and this method has been my favorite so far.

Using butter, not oil, in the pan has given me the best results. The butter seems to result in less sticking and also gives the fish a much better light golden color when cooking. The oil did not really brown the fish at all.

Once you have the fish in the pan, you do not want to move it around. Let it do it’s thing to cook and get some color before gently flipping.

The first side you put down in the pan also seems to turn out the prettiest in color and staying intact, so consider that if presentation is a concern.

Basil and citrus relish on the fish

Sides for Cod with Grapefruit Relish

Here are some great side dish options to serve alongside the fish!

Pin image for Cod with Grapefruit Relish on a plate with title at top
The citrus topping piled on top of the fish

Cod with Grapefruit Relish

Cod with Grapefruit Relish is a fresh and healthy white fish dinner recipe. Pan seared cod is topped with the citrus and basil topping. A perfect spring or summer fast seafood recipe.
5 from 6 votes
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Course: Main Course
Cuisine: Mediterranean
Keyword: 30 Min or Less, Gluten Free, Seafood
Prep Time: 5 minutes
Cook Time: 10 minutes
Total Time: 15 minutes
Servings: 4 servings
Calories: 217kcal



  • Dry off the fish with a paper towel and lightly season all sides with salt.
  • Melt the butter in a nonstick skillet over medium high heat.
  • When hot, add the fish and cook for about 2 minutes until browning.
  • Gently flip with a spatula, reduce heat to medium, and cook the second side, approximately 3-4 minutes more until cooked through. Remove from the pan and set aside.
  • Meanwhile, make the grapefruit relish. Cut the top, bottom, and skin off of the grapefruit and then slice your knife right next to each segment to remove them, leaving you with just the flesh wedges (see picture).
  • Cut the grapefruit wedges that you have removed into chunks (a little larger than you want, as they will break some with mixing) and place in a small bowl. Squeeze the "guts" (leftover white membrane from the grapefruit) of one grapefruit into the small bowl to get some of the liquid.
  • Add the finely diced red onion, basil, lemon juice, and the olive oil to the grapefruit. Stir gently to combine. Season to taste with salt and pepper. If too tart, add a little sugar as desired.
  • Top the fish with the relish, or serve on the side. Serve immediately.


Serving: 1serving | Calories: 217kcal | Carbohydrates: 14g | Protein: 21g | Fat: 9g | Saturated Fat: 4g | Trans Fat: 1g | Cholesterol: 64mg | Sodium: 112mg | Potassium: 655mg | Fiber: 2g | Sugar: 9g | Vitamin A: 1745IU | Vitamin C: 42mg | Calcium: 51mg | Iron: 1mg
By on May 17th, 2021

About Kim

Kim has grown up with a passion for cooking good food! You can find her in the kitchen experimenting with new recipes, making dog treats, and eating Italian food!

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5 thoughts on “Cod with Grapefruit Relish”

  1. 5 stars
    My husband loves fish and I’ve been trying to find a new way to prepare it! This grapefruit relish is delicious!

  2. 5 stars
    Searched for “grapefruit relish” and I found this recipe. I had ready-made crabcakes and a grapefruit. The relish was perfect. Instead of lemon juice, I used some fancy grapefruit balsamic vinegar I had, and I used green onion from the balcony.

  3. 5 stars
    Thanks a lot for sharing this very amazing cod with grapefruit relish recipe! It turned out really good and very easy to make! I highly recommend this and will make it again for sure!

  4. 5 stars
    We have a grapefruit tree that produces such an abundance of fruits I run out of things to make with it and never thought of a relish. This sounds fantastic on top of cod.


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