Sheet-Pan Lemon Garlic Cod with Green Beans
If you’re searching for a quick, flavorful, and healthy dinner that practically makes itself, this Sheet-Pan Lemon Garlic Cod with Green Beans is an absolute game-changer. Using just one pan, this recipe brings together tender cod fillets infused with zesty lemon and savory garlic, perfectly paired with crisp-tender green beans. It’s a meal that’s as simple as it is satisfying, making weeknight cooking a breeze without compromising on taste. Whether you’re cooking for family or entertaining friends, this sheet-pan wonder delivers a vibrant, wholesome dinner with minimal cleanup.
Why It’s Crowd-Pleasing
This recipe checks all the boxes for a crowd-pleaser: it’s fast, fuss-free, and packed with flavor. The cod fillets are flaky and juicy, marinated in a bright lemon garlic sauce that wakes up your taste buds. The green beans roast alongside, soaking up those same delicious juices, creating a harmonious blend of textures and flavors. Plus, the use of a single sheet pan means everything cooks evenly and simultaneously, saving you time and effort in the kitchen. It’s a dish that feels special but comes together in under 30 minutes, perfect for busy nights or casual dinner parties.
What You’ll Need
- 4 cod fillets (about 6 ounces each)
- 2 tablespoons olive oil
- 2 tablespoons lemon juice (freshly squeezed)
- 4 cloves garlic, minced
- 1 teaspoon salt
- 1/2 teaspoon black pepper
- 1 pound green beans, trimmed
- 1 lemon, sliced into thin rounds
- 1 teaspoon dried thyme
Recommended Tools
- Sheet pan: A rimmed, heavy-duty baking sheet to hold all ingredients and juices.
- Mixing bowl: For tossing green beans and preparing the marinade.
- Measuring spoons: To precisely measure oil, lemon juice, salt, and spices.
- Sharp knife: To mince garlic and slice lemon.
- Silicone spatula or tongs: For tossing and arranging ingredients on the pan.
Mastering Sheet-Pan Lemon Garlic Cod with Green Beans: How-To

Step 1: Preheat and Prep
Start by preheating your oven to 400°F (200°C). While it heats, rinse the cod fillets gently and pat them dry with paper towels—this helps the marinade stick better and ensures a nice sear. Trim the ends off the green beans and set them aside.
Step 2: Make the Lemon Garlic Marinade
In a small mixing bowl, whisk together the olive oil, freshly squeezed lemon juice, minced garlic, salt, black pepper, and dried thyme. This marinade is where all the vibrant flavors come to life, so don’t skip the fresh lemon juice—it brightens the entire dish.
Step 3: Toss the Green Beans
Add the trimmed green beans to the bowl with the marinade and toss until they’re evenly coated. Spread the green beans out on the sheet pan in a single layer, giving them space to roast properly.
Step 4: Arrange the Cod and Lemon Slices
Place the cod fillets on the sheet pan nestled among the green beans. Spoon any remaining marinade over the fish to keep it moist and flavorful. Lay the lemon slices over and around the cod for an extra burst of citrus aroma as it bakes.
Step 5: Bake to Perfection
Pop the sheet pan into the oven and roast for 12-15 minutes, or until the cod flakes easily with a fork and the green beans are tender-crisp. The lemon slices will caramelize slightly, adding a subtle sweetness that balances the garlic and herbs beautifully.
Step 6: Serve and Enjoy
Once out of the oven, serve your Sheet-Pan Lemon Garlic Cod with Green Beans immediately. This dish pairs wonderfully with a light side like quinoa, rice, or even a fresh Burrata Salad to elevate your meal.
In-Season Swaps

- Swap green beans with asparagus or broccolini for a different veggie vibe.
- Use fresh thyme instead of dried for a more aromatic profile.
- Try swapping cod with other firm white fish like haddock or halibut for variation.
- Replace lemon slices with orange or lime for a citrus twist.
Cook’s Commentary
- This recipe is all about simplicity and letting fresh ingredients shine. The garlic and lemon combo is a classic pairing with cod, enhancing its mild flavor without overpowering it.
- Sheet-pan meals like this are fantastic for minimizing dishes—just one pan to clean afterwards!
- Don’t overcrowd the pan; giving the fish and green beans room ensures even cooking and prevents steaming.
- Feel free to experiment with herbs; rosemary or oregano can be wonderful alternatives to thyme.
Storing, Freezing & Reheating
Store leftovers in an airtight container in the refrigerator for up to 2 days. To reheat, gently warm in a preheated oven at 350°F (175°C) for about 10 minutes or until heated through to maintain the flaky texture of the cod and crispness of the green beans. Avoid microwaving if possible, as it can make the fish rubbery. While freezing is possible, it’s best to freeze the cooked green beans and cod separately to preserve texture and flavor.
Top Questions & Answers
Can I use frozen cod fillets for this recipe?
Yes, frozen cod can be used but be sure to thaw it completely and pat dry before marinating and baking. Excess moisture can affect the texture and cooking time.
What if I don’t have dried thyme on hand?
Fresh thyme works beautifully, just use about 1 tablespoon chopped. Alternatively, dried oregano or rosemary are excellent substitutes that complement the lemon garlic flavors.
Is this recipe suitable for meal prep?
Absolutely! This dish reheats well and can be packed for lunches. Just keep the fish and green beans refrigerated and reheat gently to maintain texture.
Can I add other vegetables to the sheet pan?
Yes, vegetables like cherry tomatoes, bell peppers, or thinly sliced zucchini can be added. Just consider their cooking times and add accordingly to avoid under or overcooking.
More Recipes You’ll Love
- Maple Pecan Crusted Salmon – A sweet and nutty twist on baked fish that’s equally simple and delicious.
- Burrata Salad – A fresh, creamy salad to complement any seafood dish perfectly.
- Maple Pecan Crusted Salmon – For when you want to switch up your seafood routine with a little crunch and sweetness.
See You at the Table
This Sheet-Pan Lemon Garlic Cod with Green Beans recipe is proof that delicious, wholesome meals don’t have to be complicated. Its balanced flavors, minimal cleanup, and speedy prep time make it a staple in any kitchen. Next time you crave a bright, satisfying dinner, grab your sheet pan and get cooking—you’ll love how effortless and tasty this dish is. Happy cooking!
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Sheet-Pan Lemon Garlic Cod with Green Beans
Ingredients
- 4 cod fillets about 6 ounces each
- 2 tablespoons olive oil
- 2 tablespoons lemon juice freshly squeezed
- 4 cloves garlic minced
- 1 teaspoon salt
- 0.5 teaspoon black pepper
- 1 pound green beans trimmed
- 1 lemon sliced into thin rounds
- 1 teaspoon dried thyme
Instructions
- Preheat your oven to 400°F (200°C). Rinse the cod fillets gently and pat them dry with paper towels. Trim the ends off the green beans and set aside.
- In a small mixing bowl, whisk together olive oil, freshly squeezed lemon juice, minced garlic, salt, black pepper, and dried thyme to make the lemon garlic marinade.
- Add the trimmed green beans to the marinade bowl and toss until evenly coated. Spread the green beans on the sheet pan in a single layer.
- Place the cod fillets on the sheet pan nestled among the green beans. Spoon any remaining marinade over the fish. Lay the lemon slices over and around the cod.
- Roast in the oven for 12-15 minutes, until the cod flakes easily with a fork and the green beans are tender-crisp. Lemon slices will caramelize slightly.
- Serve immediately. This dish pairs well with quinoa, rice, or a fresh salad for a complete meal.
Equipment
- Sheet Pan
- Mixing Bowl
- Measuring Spoons
- Sharp Knife
- Silicone spatula or tongs
Notes
- Use fresh lemon juice for the brightest flavor in the marinade.
- Do not overcrowd the sheet pan to ensure even cooking and avoid steaming the ingredients.
- Store leftovers in an airtight container in the refrigerator for up to 2 days and reheat gently in the oven to maintain texture.

