Mediterranean Baked Cod Is the One-Pan Dinner Doctors Keep Recommending
Mediterranean baked cod with tomatoes, olives, and baby potatoes on one pan. A heart-healthy dinner for four at $5.62 a serving, done in under an hour.
Ingredients
| atlantic cod fillets, cut into 4 portions | 500 g |
| baby potatoes , halved | 680 g (about 1 bag) |
| diced tomatoes, drained of about half their juice | 1 can (796 ml) |
| yellow onion, thinly sliced | 1 large (about 200 g) |
| garlic, minced | 3 cloves |
| sliced kalamata olives | 50 g |
| lemon, half juiced and half cut into wedges | 1 |
| olive oil, divided | 30 ml |
| dried oregano | 5 ml |
| salt, divided, plus black pepper | to taste |
Steps
- 1Roast the potatoes. Heat the oven to 220°C. Toss the halved potatoes and sliced onion with 15 ml of the olive oil, half the salt, and some pepper in a large baking dish or rimmed sheet pan, then roast for 20 minutes.
- 2Mix the sauce. While the potatoes roast, stir together the drained tomatoes, garlic, olives, oregano, lemon juice, and the remaining 15 ml of olive oil.
- 3Pour it over. Take the pan out, give the potatoes a stir, and pour the tomato mixture over everything.
- 4Add the cod. Nestle the cod portions into the sauce, season them with the remaining salt and some pepper, and return the pan to the oven.
- 5Bake until it flakes. Bake for 12 to 15 minutes, until the cod is opaque all the way through, flakes easily with a fork, and reaches 70°C in the thickest part.
- 6Rest and serve. Let the pan rest for 5 minutes, then serve straight from it with the lemon wedges for squeezing.
Cod brings lean protein with very little saturated fat; olive oil and olives supply the unsaturated fats the pattern is known for, and the tomatoes, onion, and potatoes add fibre and potassium.
Doctors have been recommending the Mediterranean way of eating for decades, and the advice usually stops right where it would be most useful, which is at the stove. This Mediterranean baked cod is that advice turned into a weeknight dinner, with Canadian Atlantic cod baked over lemony potatoes in a garlicky tomato and olive sauce, all on one pan, for about $5.62 per serving.
Canada's dietary guidelines recommend replacing foods high in saturated fat with foods that contain mostly unsaturated fat, and fish is one of the protein foods Canada's food guide encourages. If you are watching your cholesterol or blood pressure, this is the kind of heart-healthy dinner that works in your favour without feeling like a sacrifice. It also helps to understand why cholesterol can run high even when you eat well. With Thanksgiving just behind us, a lighter weeknight meal is also a welcome counterweight to the heavier holiday plate.
Can you swap the cod for another white fish?
Any firm white fish works the same way, including haddock, pollock, or halibut when it's on sale. The method is built around a simple division of labour. The potatoes do the patient work up front, turning golden while you open a can and slice an onion, and the fish goes in only for the last few minutes, which is all it needs.
Cod is forgiving, though timing matters more than people expect. Check the thickest piece with a fork, and the moment it flakes, take the pan out, because a few extra minutes is the difference between silky and dry. The olives and lemon carry enough flavour that most people won't reach for the salt, and leftovers over rice make a good lunch the next day. If you like this style of cooking, our tomato basil baked cod is a lighter take on the same fish, while the cold Mediterranean chickpea salad and lemon herb salmon quinoa bowl work from the same pantry.
Frequently asked questions
How do you know when Mediterranean baked cod is done?
Mediterranean baked cod is done when the thickest piece turns opaque all the way through and flakes easily with a fork, usually after 12 to 15 minutes in the oven. For certainty, use a food thermometer, since Health Canada's safe internal temperature for fish is 70°C. Pull it out promptly, because overcooked cod turns dry and rubbery.
Can you use frozen cod for this recipe?
Frozen cod works well and is often cheaper. Thaw it overnight in the fridge, then pat it dry so the sauce stays thick instead of watery. If you forget to thaw it, sealed fillets can be thawed in a bowl of cold water, changing the water every 30 minutes, and then cooked right away.
Is this recipe high in sodium?
Olives and canned tomatoes both add sodium, so this dish is moderate rather than low in salt. To cut it down, choose no-salt-added diced tomatoes, rinse the olives, and skip the added salt, since the olives and lemon bring plenty of flavour. People on a sodium-restricted diet can ask a dietitian how it fits their plan.
How long do leftovers keep?
Leftovers keep for up to two days in a sealed container in the fridge. Reheat them gently until steaming hot, or enjoy the fish cold over rice or greens. Cooked fish in tomato sauce tends to turn soft and watery after freezing and thawing, so this dish is best eaten fresh or within those two days.
Your next step
If heart health is on your mind and you want the Mediterranean pattern turned into a real week of meals that fits your life and budget, that is precisely what dietitians are trained to do. The Medimap Health Hub has more heart-friendly recipes and guides, and Medimap can help you find dietitians and nutritionists near you, so the plan is built around you.
Disclaimer: This recipe is general information, not medical or dietary advice. If you live with a health condition or follow a prescribed diet, talk to a doctor or registered dietitian about what fits your needs. Cost and nutrition figures are estimates and will vary by store, brand, and portion.