Parmesan Crusted Cod Skillet with Garlic Lemon Butter in One Pan Tips, FAQ & printable recipe

Tips for success

Use a sharp knife and a dry cutting board to prepare the garlic and parsley, and keep the mince fine so it spreads easily across the fillets. Fine herbs cling to the flesh and distribute flavor evenly without burning in the butter. Mince the garlic just before cooking, since it loses its brightness if it sits in the open air for a long time.

Grate the Parmesan fresh rather than using a pre-shredded product. Freshly grated cheese melts more smoothly and browns more evenly, and it forms the fluffy pile that gives the crust its lacy texture. Keep the panko and cheese well mixed so the coating is even from edge to edge, and press firmly to help it stick during the flip.

Variations

• Lemon herb crust: Add a teaspoon of finely grated lemon zest to the Parmesan and panko mixture. The zest brightens the crust and pairs well with the lemon rounds and butter sauce, giving each bite a fresher citrus lift without changing the method.
• Extra garlic butter: Increase the garlic in the butter by one clove, mincing it very fine. A stronger garlic flavor suits people who enjoy a bold sauce, and it still spoons easily over the fish and spinach in the skillet.
• Spinach and white wine: Pour a splash of dry white wine into the skillet after the spinach wilts and let it reduce for a minute. The wine deepens the sauce and adds a light acidity that complements the cod and Parmesan crust well.
• Chili flake finish: Sprinkle a pinch of red pepper flakes over the butter just before serving. A little heat cuts through the richness of the sauce and gives the dish a warm finish that suits a relaxed weeknight dinner.

Storage and make-ahead

Fridge

Store leftover cod and sauce in an airtight container in the refrigerator for up to two days, cooled within two hours.

Freezer

Freezing is not recommended, because the Parmesan crust turns soft and the spinach loses its texture once thawed.

Reheat

Reheat gently in a skillet over medium-low heat with a spoonful of butter until the fish is hot all the way through, about 145°F (63°C).

Leftover cod should cool for no more than 2 hours at room temperature before it goes into the refrigerator. Transfer the fish, the spinach and the garlic lemon butter to a shallow airtight container so they cool quickly and evenly.

Store the container in the refrigerator and eat the leftovers within two days for the best texture and flavor. The crust will soften during storage, so expect a less crisp coating when you reheat it. Keep lemon wedges separate and add them fresh when serving.

Some of the work can be done earlier in the day to shorten the time at the stove. Mince the garlic, chop the parsley, slice the lemon and grate the Parmesan, then store each prepared element in a separate covered container in the refrigerator. Mix the panko and Parmesan together in advance and keep the coating covered.

Do not coat the fish until just before cooking, because the moisture from the fillets will soften the crust if it sits too long. Keep the raw cod in the refrigerator until you are ready to cook it, and never leave it at room temperature for more than 30 minutes.

Serving ideas

Serve the cod straight from the cast iron skillet while the crust is still crisp and the butter is glossy. Set the skillet in the middle of the table with lemon wedges on the side, so each person can squeeze a little juice over the fish.

Spoon extra garlic lemon butter over the spinach and bread for dipping. The skillet keeps the dish warm long enough for a relaxed dinner, and the contrast between the golden crust and the silky greens makes an attractive presentation.

For a complete meal, pair the cod with a simple side that soaks up the sauce, such as steamed rice, buttered egg noodles or a thick slice of crusty bread.

A crisp green salad with a sharp vinaigrette balances the richness of the butter and Parmesan. Chilled sparkling water or a dry white wine works well alongside the fish and keeps the meal light on the palate.

Frequently asked questions

Recipe card

Parmesan Crusted Cod Skillet with Garlic Lemon Butter in One Pan

Prep 15 minCook 12 minTotal 27 minServes 2

Ingredients

• 2 thick cod fillets
• 1 lemon, sliced into rounds, plus wedges for serving
• 3 cloves garlic, finely minced
• 2 tbsp fresh parsley, finely chopped
• kosher salt to taste
• black pepper to taste
• 1/2 cup finely grated Parmesan cheese
• 1/2 cup panko breadcrumbs
• 5 oz fresh spinach
• 2 tbsp olive oil
• 4 tbsp unsalted butter, melted

Instructions

1. Finely mince the garlic and chop the parsley on a cutting board. Slice the lemon into thin rounds and set them aside with the wedges. Pat the cod fillets dry with paper towels, then season both sides with salt and black pepper.
2. Spread half of the minced garlic and parsley across the top of each fillet, pressing it gently into the flesh so it sticks. Keep the rest of the garlic and parsley for the butter.
3. Grate the Parmesan on a box grater into a fluffy pile. Mix it in a shallow bowl with the panko breadcrumbs. Press the herb-side of each fillet into the mixture so a thick, even coating covers the top and sides.
4. Melt the butter in a small bowl. Stir in the remaining garlic and parsley and a few lemon rounds squeezed for juice. Keep the bowl warm near the stove while you prepare the skillet.
5. Spread the spinach over the bottom of the cast iron skillet and drizzle it with olive oil. Place the crusted cod fillets on top of the greens, crust side up. Arrange the lemon rounds around them.
6. Spoon the garlic lemon butter generously over the fish and into the pan so it pools around the spinach. Set the skillet over medium heat and cook until the butter bubbles vigorously and the spinach wilts.
7. Flip each fillet with tongs and sear it in the sizzling garlic butter for about 3 minutes, until the Parmesan crust turns golden brown and crisp. Spoon the butter over the fish as it cooks.
8. Continue cooking the fillets for another 3 to 5 minutes, until the flesh turns opaque, flakes easily with a fork, and reaches 145°F (63°C) at the thickest point. Take the skillet off the heat.
9. Serve the cod hot straight from the skillet, spooning the spinach and lemon garlic butter over each fillet. Garnish with lemon wedges on the side.

Contains: fish, gluten, milk

Estimated nutrition per serving

Calories

520

Protein

42 g

Carbohydrates

18 g

Fat

30 g

Fiber

2 g

Sugar

1 g

Sodium

780 mg

Automatic estimate from the ingredient list, not laboratory-verified.