On busy weeknights, I find myself coming back to this lemony baked fish again and again.
There’s something grounding about the ritual: warming the oven, melting butter with garlic, and letting the citrus perfume the whole kitchen.
In just a few minutes, the fillets turn tender and flaky, soaking up all that sunny lemon and rich garlic butter.
It’s simple cooking in the best way, with fresh, bright flavors that feel a little bit restorative at the end of the day.
Because it’s ready so quickly, I can catch my breath while it bakes, then sit down to a meal that feels both effortless and elegant.
We’ve been loving this recipe lately, an easy, light, nourishing dinner you can make any night of the week.
For the Lemon Garlic Butter Fish
- Butter – Melts into a rich base for the sauce and helps the fish stay moist as it bakes.
- Garlic – Minced garlic adds warmth and depth, giving the butter sauce its signature flavor.
- Lemon – You’ll use both the zest and slices. The zest brightens the butter sauce, while the slices create a fragrant bed for the fish.
- White Fish Fillets – Mild, tender, and quick to cook. Works well with cod, haddock, snapper, rockfish, sole, or any similar white fish.
- Sea Salt – Lightly seasons the fish so the citrus and garlic flavors shine through.
- Pepper – Adds just enough contrast and warmth to balance the buttery sauce.
- Minced Parsley – Sprinkled on at the end for freshness and a pop of color.
The Best Baked Lemon Fish with Garlic Butter
Tender white fish baked in a bright, buttery lemon-garlic sauce—simple to assemble, quick to cook, and reliably delicious.
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Servings: 4
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Ingredients
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4 tablespoons butter
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3 cloves garlic (minced)
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1 lemon
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1 ½ lb white fish fillets (see notes)
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½ teaspoon sea salt
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½ teaspoon pepper
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Minced parsley (to serve)
Instructions
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Warm the oven and prepare the sauce
Heat your oven to 425°F. In a small skillet set over medium heat, melt the butter. Stir in the minced garlic and let it gently cook for about a minute. Grate the zest from the lemon directly into the pan and mix it in. -
Line the baking dish with lemon
Slice the zested lemon into thin rounds and arrange the slices across the bottom of a baking dish. If you have a few slices left over, keep them close—they make a great garnish later. -
Season and assemble
Pat the fish fillets dry with paper towels. Sprinkle both sides with the salt and pepper, then lay the fillets on top of the lemon slices. Spoon or brush the warm garlic butter evenly over the fish. -
Bake
Slide the dish into the oven and bake for 10–12 minutes, or until the fish flakes easily when tested with a fork. Finish with a sprinkle of fresh parsley before serving.
- “White fish” covers a range of mild-flavored varieties. Cod, lingcod, grouper, snapper, whitefish, haddock, rockfish, or sole all work beautifully here.
- Can I use frozen fish fillets?
Absolutely! Just thaw them completely and pat them really dry. Damp fish = no golden edges and a watery sauce. Dry fish = winning at life.
- How do I know the fish is cooked perfectly?
Fish is done when it flakes easily and turns opaque. No need to overthink it. If you’re a thermometer person, aim for around 140–145°F in the thickest spot. Pull it out right away — fish keeps cooking off the heat!
- Should I flip the fish while it bakes?
Nope! White fish is delicate and flipping it risks it falling apart. Pop it in the oven and let the lemon slices do their job. Hands off = success.
- What if my fillets are super thin or extra thick?
Thinner fillets cook faster (think 8 minutes). Chunkier pieces need a bit longer. Use the “flakes-with-a-fork” rule and you’ll nail it every time — no stopwatch required.
- How can I make cleanup easier?
Parchment paper is your best friend. Or use the lemon slices in the recipe as a natural non-stick layer. You’ll spend more time eating and less time scrubbing. Win-win.
