Moist and flavourful sea bass with garlic, sesame and soy sauce, on a bed of delicious spinach. A quick and easy one dish dinner the family will love.
Pesach (Passover) is getting closer, and the freezer-emptying effort has been stepped up. This recipe was created to finish off the frozen sea bass fillets lurking in one of the drawers! Now I just have the frozen salmon and hake backlog to deal with…

Having defrosted the sea bass fillets, I had to work out how we were going to cook them. There was a big bag of spinach in my organic veg box, so that was a good start. A quick cupboard raid later, and this delicious recipe was born.
Sea bass marinade – Prepare ahead, or not!
I assembled everything up to the cooking stage, before going out for a couple of hours. Doing so meant that I could throw it in the oven upon my return and it would be cooked by the time I’d taken my coat off, set the table, and generally pulled myself together.
The sea bass marinated in the flavours of the sesame oil, garlic and soy sauce for a couple of hours before cooking, and the end result was moist and flavourful fish. However, having experimented with the rate of diffusion of soy sauce through food, I’m pretty confident in saying that two hours probably don’t make much difference. So if you want to make this and then shove it straight in the oven without waiting, I expect it would be completely fine!
Ingredients in Sea bass with spinach, sesame and soy sauce
This delicious dinner has only a handful of ingredients and is super easy to make. To enjoy it yourself, you will need:
- Sea bass fillets – of course! Choose firm, medium sized fish fillets for best results.
- Olive oil – to grease the baking dish
- Fresh spinach – make sure you have plenty, it disappears! (see below)
- Garlic – yum!
- Toasted sesame oil – for a rich and unique flavour
- Tamari or soy sauce

Disappearing spinach
The spinach looked like a lot pre-cooking, but as always with spinach, it almost disappeared once the dish was cooked. My daughter Kipper was initially reluctant to eat the spinach, but once she’d tried it and realised that it tasted of delicious garlicky soy sauce and sesame oil, she scoffed it down. And nearly a whole sea bass fillet, too.

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📖 Recipe

Sea bass with spinach, sesame and soy
Ingredients
- 1-2 tablespoon olive oil
- 250-400 g spinach leaves (large bag)
- 1 clove garlic
- 1½ tablespoon toasted sesame oil
- 1½ tablespoon tamari or soy sauce
- 4 sea bass fillets (approx 85g each)
Instructions
- 1-2 tablespoon olive oilPreheat the oven to 180°C (350°F). Brush the inside of a large baking dish with the olive oil.
- 250-400 g (8⅚-14 oz) spinach leavesWash the spinach and shred the leaves if large. Place in the oiled dish.
- 1 clove garlic, 1½ tablespoon toasted sesame oil, 1½ tablespoon tamari or soy sauce, 4 sea bass filletsPeel and crush the garlic clove, and whisk with the sesame oil and soy sauce. Wash and pat dry the sea bass fillets and brush with the garlic/sesame/soy mixture.
- Pour any remaining garlic/sesame/soy mixture over the shredded spinach and mix in.
- Place the fish fillets on top of the spinach, and cover with foil.
- Bake at 180°C (350°F) for around 20 minutes, until the spinach is wilted and the fish is cooked through.
- Serve the fish on a bed of spinach. Enjoy!
Nutrition
More delicious fish recipes
If you like this sea bass, you might also enjoy:

As I mentioned here, March’s Four Seasons Food challenge, hosted by Delicieux and Eat Your Veg, is on the theme of Something Fishy. This is my fishy entry number 2!










Deb
Delicious recipe thankyou, I added orange n ginger glazed carrots as a side, defo recommend
Helen
Thanks Deb! Glad you enjoyed this and the combination with carrots sounds delicious!s
FFF
Thanks! The #SomethingFishy event was lovely – full of brilliant ideas. We eat a lot of fish, so it’s great to get new inspiration 🙂
Eat Your Veg
I wish my freezer was full of lots of lovely fish to use! LOVE sea bass and this is a fabulous recipe packed with flavour, even better that it can be prepped in advance. Thanks so much for linking up to this month’s Four Seasons Food #SomethingFishy event.