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Home » Recipes » Fish

Baked Cod with Creamy Mushroom and Leek Orzo

Published: Apr 9, 2021 · Modified: Mar 12, 2026 by Deborah · This post may contain affiliate links · This blog generates income via ads · #sponsoredpost · Leave a Comment

Baked cod with creamy mushroom and leek orzo in a bowl with a plate of sliced baguette and a bowl of air fryer courgettes on the side.
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This baked cod with creamy mushroom and leek orzo is a simple yet elegant dish, packed with delicate fish, earthy mushrooms, and velvety orzo. Perfect for cosy dinners or entertaining guests. 

I found the recipe on the BBC Good Food website after searching for 'mushroom and leek' on the website. I already had everything on the ingredient list except the crème fraiche so added that to my next online food shopping delivery. 

I've seen quite a few recipes that combine fish with mushrooms and it's always something I've turned my nose up at…in my mind it just doesn't make sense!! However, I decided it was time to give it a try…and honestly, it's delicious.  The end result is lovely baked cod with a hint of lemon and thyme. The orzo cooked in the stock along with the mushroom and leeks and then a hint of lemon at the end from the zest and the creaminess from a small amount of crème fraiche is seriously yum.  Definitely a recipe to make over and over again! 

Tips

  • Alternative fish - haddock, halibut or sea bass are good substitutes. 
  • Alternative protein - swap out the cod for pan fried or roast chicken. 
  • This baked cod with creamy mushroom and leek orzo recipe is easily halved if you're cooking for 2. 

Frequently Asked Questions

Can I make this dish ahead of time?  

You can prep the orzo base ahead, but bake the cod fresh to avoid it drying out.  

Can I use frozen cod?  

Yes - but make sure it's fully thawed and patted dry before cooking to avoid excess moisture.  

Can I make this dairy-free?  

Yes - use plant-based cream like oat or soy. 

What can I substitute for orzo?  

Use risotto rice (arborio), pearl barley, or even small pasta like ditalini, noting that cooking times will vary. 

Is this dish gluten-free?  

Not by default, but you can make it gluten-free by using gluten-free orzo or rice.  

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How to make this Baked Cod with Creamy Mushroom and Leek Orzo

Ingredients

  • 3 tbsp plain flour 
  • salt and freshly ground black pepper 
  • 4 cod loin fillets (total weight approx. 650g) 
  • 2 tbsp olive oil 
  • 1 lemon, zested and sliced 
  • half a small bunch of thyme 
  • 2 leeks, sliced and rinsed to remove any hidden dirt 
  • 200g chestnut mushrooms, sliced 
  • 300g orzo 
  • 500ml fish or vegetable stock (made using a stock cube or pot) 
  • 2 tbsp reduced fat crème fraiche 

Instructions

  1. Heat the oven to 220C/200C fan/gas 7. Tip the flour into a bowl and season with salt and freshly ground black pepper. Dip each cod fillet into the flour until evenly coated. Heat 1 tbsp of the oil in a non-stick frying pan over a medium to high heat and fry the cod on each side for 2 minutes, or until golden brown. Transfer to a roasting tin with the lemon slices on top and nestled in the thyme. Bake for 10 minutes. 
  2. While the fish is baking in the oven, heat the remaining oil over a medium to high heat in a large saucepan and fry the leeks and mushrooms for 5 minutes. Add the orzo and stock, and cook on a fast simmer for 10 minutes, stirring occasionally, until the orzo is tender (Note: you want the stock to be absorbed, but not completely so that orzo ends up dry. If halving the recipe, you may need more than 250ml of stock, so make the full amount just in case). Remove the pan from the heat and stir through the crème fraiche and lemon zest. Season with salt and freshly ground black pepper, to taste. Serve the orzo with the baked cod fillets and roasted lemon slices on top. 

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Baked cod with creamy mushroom and leek orzo in a bowl with a plate of sliced baguette and a bowl of air fryer courgettes on the side.

Baked Cod with Creamy Mushroom and Leek Orzo

By: Deborah
This baked cod with creamy mushroom and leek orzo is a simple yet elegant dish, packed with delicate fish, earthy mushrooms, and velvety orzo. Perfect for cosy dinners or entertaining guests. 
PREP: 15 minutes mins
COOK: 20 minutes mins
TOTAL: 35 minutes mins
Servings: 4 people
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Equipment

  • Frying pan
  • Medium roasting tin
  • Saucepan

Ingredients

  • 3 tbsp plain flour
  • salt and freshly ground black pepper
  • 4 cod loin fillets (total weight approx. 650g)
  • 2 tbsp olive oil
  • 1 lemon zested and sliced
  • half a small bunch of thyme
  • 2 leeks sliced and rinsed to remove any hidden dirt
  • 200 g (7.1 oz) chestnut mushrooms sliced
  • 300 g (10.6 oz) orzo
  • 500 ml (2 cups) fish or vegetable stock (made using a stock cube or pot)
  • 2 tbsp reduced fat crème fraiche

Instructions

  • Heat the oven to 220C/200C fan/gas 7. Tip the flour into a bowl and season with salt and freshly ground black pepper. Dip each cod fillet into the flour until evenly coated. Heat 1 tbsp of the oil in a non-stick frying pan over a medium to high heat and fry the cod on each side for 2 minutes, or until golden brown. Transfer to a roasting tin with the lemon slices on top and nestled in the thyme. Bake for 10 minutes.
  • While the fish is baking in the oven, heat the remaining oil over a medium to high heat in a large saucepan and fry the leeks and mushrooms for 5 minutes. Add the orzo and stock, and cook on a fast simmer for 10 minutes, stirring occasionally, until the orzo is tender (Note: you want the stock to be absorbed, but not completely so that orzo ends up dry. If halving the recipe, you may need more than 250ml of stock, so make the full amount just in case). Remove the pan from the heat and stir through the crème fraiche and lemon zest. Season with salt and freshly ground black pepper, to taste. Serve the orzo with the baked cod fillets and roasted lemon slices on top.

Notes

  • Alternative fish - haddock, halibut or sea bass are good substitutes. 
  • Alternative protein - swap out the cod for pan fried or roast chicken. 
  • This baked cod with creamy mushroom and leek orzo recipe is easily halved if you're cooking for 2. 
 
You might also like to try: 
  • fish dishes 
  • pasta dishes 
 

Nutrition

Calories: 572kcal | Carbohydrates: 72g | Protein: 44g | Fat: 11g | Saturated Fat: 2g | Polyunsaturated Fat: 2g | Monounsaturated Fat: 6g | Cholesterol: 70mg | Sodium: 510mg | Potassium: 1293mg | Fiber: 4g | Sugar: 6g | Vitamin A: 818IU | Vitamin C: 21mg | Calcium: 122mg | Iron: 3mg

Nutrition information is automatically calculated, so should only be used as an approximation.

KEYWORDS baked cod and orzo recipe, fish and pasta recipe, under 30 minutes
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Photo of Deborah in her kitchen!

Hello!   I’m Deborah and I’m married to David and have 2 lovely step sons.   David and I both love cooking…for ourselves, family and friends.   I’m definitely one of the lucky ones…getting cooked for and we enjoy cooking together.

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