Sheet-Pan Lemon-Garlic Cod with Roasted Vegetables

This Sheet-Pan Lemon-Garlic Cod with Roasted Vegetables may sound intricate, but it’s super simple and cleanup is a snap. Protein-rich cod is draped in a lemony Dijon butter sauce that soaks into the fish while baking. Antioxidant-rich veggies—potatoes, zucchini and tomatoes—are roasted to perfection, tender and golden brown. Keep reading for our expert tips, including which ingredients can be swapped out.

Tips from the EatingWell Test Kitchen

These are the key tips we learned while developing and testing this recipe in our Test Kitchen to make sure it works, tastes great and is good for you too! 

• We decided to go with baby Yukon Gold potatoes because they have a rich, buttery flavor, and their size is just right for this recipe. If you can’t find those, fingerling potatoes work great, or you can chop regular-size Yukons into 1½-inch cubes.
• You can switch things up by using cilantro instead of parsley, swapping yellow squash for the zucchini, or adding red bell pepper to the recipe or subbing it for the tomatoes.
• Cod releases a lot of water while it cooks, which can make the veggies soggy. To avoid that, we made a foil packet to keep the fish separate. Additionally, roasting at a higher temperature helps cook off a significant amount of that moisture.

Nutrition Notes

• Cod is a white fish, and while it doesn’t have the omega-3s that salmon does, it’s a wonderful source of lean protein. Eating more fish and other seafood is linked with a healthier heart and brain.
• Zucchini may seem humble, but it’s packed with antioxidants known for their skin and eye benefits. There is some evidence that eye health is connected to bone health, so zucchini may help your bones, too. 
• Cherry tomatoes are packed with the antioxidant lycopene, known for its ability to help prevent heart disease and cancer. Tomatoes are also rich in vitamin C, which supports immunity and is involved in the production of collagen, which is great for your skin and joints.
• Potatoes are a good source of fiber and energy-boosting carbohydrates. The potassium in potatoes helps support healthy blood pressure.