Mediterranean Baked Cod

Mediterranean baked cod is white fish with tomatoes, olives, capers, and herbs, all cooked together in one pan until the fish is tender and flakes apart. The tomatoes and olive brine create a light sauce that seasons the cod without cream or butter. Drying the fish surface before it goes in the oven is the one move that keeps it from steaming.

Ingredients for Mediterranean Baked Cod

Cod fillets are mild white fish that cook quickly and stay moist. Cherry tomatoes burst as they bake and release their juice into a sauce. Kalamata olives and capers add salt and brine to season everything around them. Garlic and fresh oregano bring warmth and herbal flavor. Olive oil carries the flavors and prevents sticking. Lemon juice and salt brighten the fish and balance the brine.

Why This Mediterranean Baked Cod Works

Cod is delicate and cooks through in minutes. The oven heat gently firms the flesh while the tomatoes and olives break down beside it, releasing their liquid and salt. Because you pat the fish dry before it goes in, it stays firm instead of turning mushy.

The olives and capers are naturally salty, so you need less added salt than you would for plain fish. Their brine mingles with the tomato juice and olive oil to make a light pan sauce that clings to the cod. Lemon juice at the end cuts through the richness and sharpens the flavors.

Mistakes To Avoid

Frozen cod that has not thawed fully will cook unevenly and stay wet in the center. Thaw it in the refrigerator overnight, or place it in a sealed bag in cold water for 30 minutes, changing the water halfway through. A partially thawed fillet cooks from the outside while the inside stays soft.

Putting wet fish into the oven means it steams instead of bakes, and the surface stays pale and soft. Pat it dry with paper towels right before it goes in the pan. This is the one step that separates mushy fish from firm fish.

Baking cod past 145°F (63°C) makes it dry and stringy. The window between done and overdone is only a few minutes, so set a timer for 15 minutes and check the thickest part with an instant-read thermometer. The flesh should be opaque and firm when pressed, not translucent or soft.

Using green or brined olives instead of kalamata olives will make the dish taste salty and sharp. Kalamata olives have a mellow, fruity flavor that suits fish. Taste the brine before you use it; if it is very salty, rinse the olives under cold water.

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Ingredients

• 4 cod fillets, 6 ounces each, about 1 to 1.5 inches thick
• 2 cups cherry tomatoes, halved
• 3/4 cup kalamata olives, pitted
• 3 tablespoons capers, rinsed
• 4 cloves garlic, thinly sliced
• 2 tablespoons fresh oregano, leaves only, or 1 teaspoon dried oregano
• 1/4 cup olive oil
• 2 tablespoons fresh lemon juice
• 1/2 teaspoon salt
• 1/4 teaspoon black pepper

Step-by-step Instructions

1. Heat the oven to 400°F (200°C).
2. Pat the cod fillets dry with paper towels and lay them in a 9×13 baking pan.
3. In a small bowl, mix the cherry tomatoes, kalamata olives, capers, garlic, oregano, olive oil, lemon juice, salt, and black pepper.
4. Spoon the tomato mixture around and over the cod, making sure some of the liquid touches the fish.
5. Bake at 400°F (200°C) for 15 to 18 minutes, until the fish is opaque and firm when pressed and reaches 145°F (63°C) at the thickest part, measured with an instant-read thermometer.
6. Let the cod rest in the pan for 2 minutes before serving.