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Mediterranean baked cod with lemon and capers is a simple fish dish where cod fillets bake right in a warm tomato, olive, and caper sauce until the fish turns opaque and flakes with a fork. The lemon keeps everything bright, and the capers add a salty, briny bite that plays well against the mild cod.
I make this on busy weeknights because it comes together in one dish and takes about 30 minutes start to finish. There’s no need to sear the fish first or watch a pan closely.
Cod works well here because it’s mild and stays moist when baked, as long as you don’t leave it in the oven too long. Thick fillets, over 1.5 inches, need a few extra minutes, while thin ones can dry out fast, so I start checking early.
You can swap in halibut or any firm white fish if cod isn’t at the market. Serve it with crusty bread to soak up the sauce, or over rice.
Why You’ll Love This Recipe
- One dish, minimal cleanup, ready in about 30 minutes
- Cod stays moist under a chunky tomato-caper sauce
- Naturally gluten free and low in carbs
- Briny capers and olives add flavor without extra work
Ingredient Notes
- cod fillets: Cod is mild and flakes easily once baked. Halibut or haddock work as a swap if you keep the fillets a similar thickness.
- capers: Capers are salty and briny. Rinse them briefly and pat dry if you want a milder bite.
- Kalamata olives: Kalamata olives add a deep, salty flavor. Green olives work too, though they taste sharper.
- cherry tomatoes: Cherry tomatoes soften fast in the oven and release juice that becomes part of the sauce.
- lemon: Use half the lemon in thin slices for baking and save the other half for fresh juice at the end.
- dried oregano: Dried oregano holds up well to baking. Fresh oregano works too, use about three times as much.
Easy Mediterranean Baked Cod with Lemon and Capers
Ingredients
Method
- Heat the oven to 200C/400F.
- In a 33 x 23 cm / 13 x 9-inch baking dish, toss the cherry tomatoes, capers, olives, garlic, 1 tbsp of the olive oil, oregano, and red pepper flakes.
- Roast for 8 minutes, until the tomatoes soften and start to release their juice.
- Remove the dish from the oven. Push the tomato mixture to the edges and tuck the cod fillets into the center.
- Season the fish with salt and pepper, drizzle with the remaining 1 tbsp olive oil, and lay 4 to 5 lemon slices over the top.
- Return to the oven and bake for 12 to 15 minutes, until the cod turns opaque and flakes easily with a fork. It should reach an internal temperature of 145F/63C.
- Remove from the oven. Squeeze the juice from the remaining lemon half over the dish and scatter the parsley on top.
- Spoon the sauce over each fillet and serve right away.
Notes
- Pat cod dry before seasoning so it browns instead of steaming.
- Thick fillets need a few extra minutes past the 12-minute mark.
- Don't skip roasting the tomatoes first, it builds a deeper sauce.
- Rinse capers if they taste too salty for your liking.
Tips for Success
- Pat the cod dry before seasoning so the fillets brown slightly instead of steaming in the sauce.
- Check thick fillets, over 1.5 inches, a few minutes past the 12-minute mark since they cook slower than thin ones.
- Test doneness with a fork, cod should flake apart easily and look opaque all the way through.
- Rinse capers briefly if you find them too salty, then pat dry before adding to the dish.
- Slice the lemon thin so it roasts soft instead of turning bitter and tough.
Variations
- Swap cod for halibut or haddock fillets of the same thickness, keeping the bake time about the same.
- Add sliced fennel or zucchini to the tomato mixture for a heartier, vegetable-packed version of this dish.
- Stir in a handful of baby spinach during the last 5 minutes of baking for extra greens.
Storage and Reheating
Baked cod with lemon and capers keeps for 2 to 3 days in the fridge in an airtight container. Store the fish and sauce together so the sauce keeps the fillets from drying out.
To reheat, place the cod and sauce in an oven-safe dish, cover with foil, and warm at 150C/300F for 10 to 12 minutes, until heated through. Add a splash of water or extra lemon juice to the sauce first, since it thickens as it sits.
Freezing isn’t a good idea here. The cod turns watery and the tomatoes go mushy once thawed, so I just make this fresh instead.
Serving Suggestions
Mediterranean baked cod with lemon and capers goes well with something simple to soak up the sauce. Crusty bread or a warm pita works well for that.
For a full meal, serve it over rice, orzo, or mashed potatoes. A cucumber and red onion salad adds crunch next to the soft fish.
A glass of dry white wine, like sauvignon blanc, pairs well with the lemon and capers.
FAQ
How do I know when the baked cod is done?
The cod is done when it turns opaque all the way through and flakes easily when you press it with a fork. It should reach an internal temperature of 145F/63C. Thick fillets need closer to 15 minutes, while thin ones can be ready at 12.
Can I use frozen cod fillets instead of fresh for this recipe?
Yes, but thaw them fully first and pat them dry, or the extra water will dilute the sauce. Frozen fillets also tend to be thinner, so start checking for doneness around the 10-minute mark instead of waiting the full bake time.
Can I make this baked cod ahead and reheat it the next day?
You can. Store the cod and sauce together in the fridge for 2 to 3 days, then reheat covered in the oven at 150C/300F for about 10 minutes. Add a splash of water to loosen the sauce first, since it thickens in the fridge.
What goes well with Mediterranean baked cod with lemon and capers?
Crusty bread or warm pita is good for soaking up the tomato-caper sauce. Rice, tomato feta orzo, or mashed potatoes turn it into a fuller meal, and a simple cucumber salad adds crunch on the side.
Is this baked cod recipe gluten free?
Yes, this dish is naturally gluten free since it’s just cod, olive oil, tomatoes, olives, capers, and lemon. Just check that any bread or side you serve with it is gluten free too, if that matters to you.
What’s the difference between this and cod piccata?
Cod piccata is usually pan-seared in butter with a lemon-caper pan sauce, while this version bakes the fish right in a chunky tomato, olive, and caper sauce in the oven. Both use lemon and capers, but this one skips the stovetop searing and adds tomatoes and olives for a more Mediterranean flavor.