This Mediterranean-inspired baked cod pairs mild, flaky fish with lemon, garlic, sweet tomatoes, chickpeas and briny olives in one easy oven dish. The vegetables roast first to build flavor, then the cod cooks on top; serve it with bread, rice or potatoes to catch the savory juices.
Ingredients
- 1½ lb cod fillets (680 g), cut into 4 portions about 1½ inches thick
- 2 cups cherry tomatoes (300 g), halved
- 1 small red onion (about 110 g), thinly sliced
- 1 can chickpeas, 15 oz (425 g), drained and rinsed; about 1½ cups (250 g) drained
- ½ cup pitted Kalamata or other black olives (75 g), halved
- 3 tbsp olive oil (45 ml), divided
- 3 garlic cloves (about 9 g), finely chopped
- 1 tsp dried oregano (1 g)
- ½ tsp sweet paprika (about 1 g)
- ¾ tsp fine salt (about 4.5 g), divided, plus more to taste
- ¼ tsp freshly ground black pepper (about 0.5 g)
- ¼ cup water or low-sodium vegetable or chicken stock (60 ml)
- 1 lemon, finely zested and juiced (about 2 tbsp / 30 ml juice)
- ¼ cup chopped fresh parsley (about 15 g)
- ⅛ tsp red pepper flakes (about 0.3 g), optional
Instructions
- Heat the oven and prepare the pan. Set a rack in the center and heat the oven to 400°F (205°C). Choose a shallow 9-by-13-inch (23-by-33-cm) baking dish or a similar-size roasting pan. Pat the cod dry with paper towels; dry fish browns and seasons more evenly than wet fish. If the fillets have thin tails, tuck them under so each portion is a more even thickness.
- Season the vegetables. In the baking dish, combine the tomatoes, onion, chickpeas, olives, garlic, oregano, paprika, ½ teaspoon of the salt, black pepper and red pepper flakes, if using. Add 2 tablespoons (30 ml) olive oil and the water or stock, then toss to coat. Spread the mixture into an even layer. The liquid should lightly moisten the bottom of the dish rather than submerge the vegetables.
- Roast the vegetable mixture. Bake uncovered for 15 minutes, until the tomatoes begin to soften and release juice and the onion starts to turn tender. Stir once if the edges are browning much faster than the center. This short head start matters: cod cooks quickly, so adding it at the beginning could leave the fish dry before the chickpeas and onion are hot.
- Season and add the cod. While the vegetables roast, rub the fish with the remaining 1 tablespoon (15 ml) olive oil and sprinkle it with the remaining ¼ teaspoon salt. Take the pan from the oven and make four spaces among the vegetables. Set the cod portions in the spaces, then spoon a little of the tomato mixture and pan liquid around—not heavily over—the fish. Return the dish to the oven.
- Bake until just cooked. Bake for 11–13 minutes, depending on the thickness of the portions. Begin checking at 10 minutes: insert an instant-read thermometer sideways into the thickest part of a fillet. Fish is safe when it reaches the USDA FSIS minimum internal temperature of 145°F (63°C); the flesh should also look opaque and separate into moist flakes. If it has not reached that temperature, bake for another 1–2 minutes and check again. Avoid judging doneness by color alone.
- Finish and serve. Let the dish stand for 2 minutes while you stir the lemon zest and juice into the vegetables. Taste the pan juices and add a pinch of salt or more lemon if needed. Scatter parsley over the top and spoon the fish, chickpeas and vegetables onto warm plates, with some of the juices from the dish.
Tips
- Choose evenly thick portions. Cod loin pieces are thick and cook more evenly; thinner tail pieces can still work, but check them early and remove any portion that reaches 145°F (63°C) before the others. If you use frozen cod, thaw it completely in the refrigerator and pat it very dry before cooking. Excess surface water dilutes the seasonings and can make the finished dish watery.
- Adjust salt for the olives and stock. Kalamata olives and many prepared stocks are salty, so the measured salt is a starting point. Use low-sodium stock if available, then taste the vegetables and juices after baking before adding more. If you only have salted stock, reduce the initial salt slightly.
- Keep the fish moist. Cod is lean and can turn dry or break apart if overbaked. Use a thermometer in the thickest part rather than extending the bake just because the tomatoes look juicy. The cod will continue to feel delicate as you serve it, so lift portions with a broad spatula.
- Substitute thoughtfully. Haddock, pollock or hake can replace cod in equal portions; their texture and cooking time are similar, though thinner pieces may finish sooner. Fresh oregano may be used instead of dried—use 1 tablespoon (about 3 g)—for a brighter, greener herbal flavor.
Serving Suggestions
This dish has chickpeas and vegetables built in, but a simple side helps make the tomato-lemon juices part of the meal. Serve it with crusty bread or warm flatbread for dipping, or spoon the fish and vegetables over couscous, rice or orzo. For a potato option, serve boiled baby potatoes or roasted potatoes alongside; the cod cooks too quickly for raw potatoes to roast in the same pan, so cook them separately.
A crisp green salad with cucumber, leafy greens and a light vinaigrette balances the warm, savory sauce. Steamed green beans, broccoli or asparagus also work well. If the meal needs a finishing touch, add extra parsley and lemon wedges at the table rather than more salt; guests can adjust the acidity to taste.
Variations
Make it without chickpeas: Leave them out and add another cup (150 g) of cherry tomatoes, or serve the finished fish over cooked grains. The pan will have fewer hearty elements, but the lemony tomato and olive mixture still makes a flavorful topping.
Use another bean: Drained cannellini beans or butter beans can replace the chickpeas in the same quantity. They are softer, so fold them gently through the vegetables after roasting rather than stirring vigorously. The result is creamier and less nutty than the chickpea version.
Add greens: Stir 2 packed cups (about 60 g) baby spinach into the hot vegetables just before adding the fish. It will wilt as the dish finishes baking. For firmer greens such as kale, remove tough stems, slice the leaves thinly and roast them with the vegetables from the start.
Change the seasoning: Swap the oregano for dried thyme, or add ½ teaspoon ground cumin (about 1 g) for a warmer, earthier note. You can use green olives instead of Kalamata olives; they tend to taste sharper and saltier, so taste before seasoning the finished dish. These are flexible home-style variations, not one fixed regional formula.
Storage and Reheating
Refrigerate leftovers within 2 hours of cooking, transferring them to a covered airtight container once they have stopped steaming heavily. Keep the cod and vegetables refrigerated for 3–4 days. For better texture, store fish portions with some of the tomato juices so they are less likely to dry out. Do not leave cooked fish at room temperature for more than 2 hours.
Reheat only the portion you plan to eat. For gentle oven reheating, place fish and vegetables in a small covered baking dish with a spoonful of water, stock or pan juices; warm at 300°F (150°C) until the leftovers reach 165°F (74°C). In a microwave, cover loosely and heat in short bursts, checking the center and turning the vegetables between bursts. The fish may become firmer after reheating, so avoid repeated heating and cooling.
You can freeze cooked portions in a freezer-safe container for up to 2 months for best quality. Thaw overnight in the refrigerator and reheat to 165°F (74°C). The cod may be softer after thawing, but it remains useful flaked into a grain bowl or mixed gently through the chickpeas and vegetables.
Frequently Asked Questions
Can I use frozen cod for this recipe?
Yes. Thaw it in the refrigerator before cooking, then drain any liquid and pat each portion dry. Cooking cod straight from frozen can release extra water into the pan and make timing less predictable, especially because the vegetables need their head start. After thawing, follow the recipe and rely on the thermometer rather than the clock alone.
How do I know when baked cod is done?
Check the thickest part with an instant-read food thermometer; the USDA FSIS safe minimum for fish is 145°F (63°C). At that point cod should be opaque and flake readily, though it should still look moist. If the fillet is thin, check it early because it may reach the safe temperature before a thicker portion.
Can I prepare the dish ahead of time?
You can halve the tomatoes, slice the onion, chop the garlic and parsley, and measure the seasonings earlier in the day; keep prepared ingredients covered in the refrigerator. For the best texture, assemble and roast the vegetables shortly before serving, then add the cod. Do not leave raw fish sitting at room temperature while you prepare the other ingredients.
What can I use instead of Kalamata olives?
Use another pitted black olive or a green olive you enjoy. Kalamata olives bring a fruity, tangy saltiness, while green olives are often sharper and can taste more briny. If the substitute is especially salty, rinse it briefly and wait until the dish is cooked before deciding whether it needs extra salt.
Can I make this recipe with a different fish?
Haddock, hake and pollock are practical alternatives with a similarly mild flavor. Use the same total weight and arrange the pieces in a single layer, but check their temperature early because thickness matters more than the fish name. If using a very thin fillet, shorten the bake and remove it as soon as it reaches 145°F (63°C).
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Safety notes: safe minimum internal temperatures from USDA FSIS; raw and undercooked fish guidance from the U.S. FDA. Food safety notes
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