Luby’s Baked Fish Recipe: Flaky White Fillets With Lemon Butter

This baked fish delivers the flaky texture and bright flavor that made Luby’s famous. I’ve recreated their signature technique for tender white fillets with a simple yet perfect lemon butter finish.

The secret lies in gentle baking at 375°F, which keeps the fish moist while developing a golden crust. A light seasoning and fresh lemon butter sauce elevate the natural sweetness of the fillets.

What results is restaurant-quality fish that falls apart at the touch of a fork, with a delicate citrus note in every bite. The buttery finish adds richness without overpowering the fish itself.

Ready in under 30 minutes, this dish proves that great seafood doesn’t require complicated techniques or hard-to-find ingredients.

Ingredients for Luby’s Baked Fish

Tender white fillets meet bright lemon butter in this simple yet elegant seafood dish.

The fish selection is critical. Cod, tilapia, or haddock deliver the flaky texture Luby’s is known for—avoid oily varieties like salmon. Whole Foods or Trader Joe’s typically stock fresh, skinless fillets perfect for this. Look for fillets that are uniform in thickness for even cooking. If using frozen, thaw completely and pat dry to prevent steaming instead of baking.

No white fish on hand? Pollock or halibut work well too, though halibut requires slightly less baking time. For the butter, Plugrá or Kerrygold offer superior flavor. Fresh lemon juice is non-negotiable—bottled lacks the brightness. If you must substitute, white wine at half the amount adds acidity without overpowering the delicate fish flavor.

Fresh fish should be cooked the day of purchase. Leftovers hold well in the fridge for up to 2 days—gently reheat to avoid drying out. The lemon butter sauce can be made ahead and stored in the fridge for 1 week.

Step-by-Step Instructions for Baked White Fish With Lemon Butter

Here is the method for achieving tender, flaky fillets with a bright citrus finish.

Step 1: Season and Dredge the Fish Fillets

Pat the 1.5 lb white fish fillets thoroughly dry with paper towels—this ensures a light, even crust. In a shallow dish, combine the 0.5 cup all-purpose flour, 1 tsp kosher salt, 0.5 tsp freshly ground black pepper, 0.5 tsp garlic powder, 0.5 tsp onion powder, 1 tsp dried parsley, and 0.25 tsp paprika.

Dredge each fillet lightly in the flour mixture, shaking off any excess. The coating should be thin and uniform, not heavy or clumpy. This step creates a delicate barrier that helps the fish retain moisture while baking.

Step 2: Prepare the Baking Dish and Lemon Butter

Preheat your oven to 400°F. Use the 2 tbsp olive oil to grease a baking dish large enough to hold the fillets in a single layer. This prevents sticking and promotes even browning.

In a small saucepan over low heat, melt the 0.5 cup unsalted butter gently. Once melted, remove from heat and stir in the 0.25 cup fresh lemon juice and 1 tbsp lemon zest. The mixture should be fragrant, with the zest distributing evenly throughout the butter.

Step 3: Bake the Fish to Flaky Perfection

Arrange the dredged fillets in the prepared baking dish. Pour half of the lemon butter sauce over the top, allowing it to pool slightly around the edges. Reserve the remaining sauce for serving.

Bake uncovered for 12-15 minutes, or until the fish flakes easily with a fork and the edges are just beginning to turn golden brown. Avoid overbaking—the fish continues cooking slightly after removal from the oven.

Step 4: Finish and Serve

Remove the dish from the oven and immediately drizzle the remaining lemon butter sauce over the fillets. Let the fish rest for 2-3 minutes—this allows the juices to redistribute, ensuring each bite is moist and tender.

Garnish with an additional sprinkle of dried parsley if desired. Serve while hot, with the lemon butter sauce spooned over each portion. The fish should be opaque throughout, with a delicate crust and a bright, citrusy aroma.

Troubleshooting This Dish

Overbaking Issues

If your fish turns out dry, it likely baked too long. At 400°F, 12-15 minutes is ideal for 1.5 lb fillets. I pull mine out the moment the edges turn golden brown and the center flakes easily. 🌡️

Soggy Coating

A wet, gummy crust usually means the fillets weren’t patted dry before dredging. Use paper towels to remove all moisture from the surface. Also, shake off excess flour to prevent a thick, pasty layer.

Lemon Butter Separates

If your sauce splits, the butter may have gotten too hot. Melt it over low heat and remove from the stove before adding lemon juice. Stirring constantly keeps the emulsion smooth.

Fish Sticks to Pan

Even with 2 tbsp olive oil, sticking can happen if the dish isn’t properly greased. I use a pastry brush to coat every inch of the baking surface. Nonstick pans help too.

Uneven Cooking

Fillets of varying thickness cook inconsistently. Fold thinner ends under to create uniform thickness. Rotate the pan halfway through baking for even browning.

Dull Flavor

If the dish tastes flat, your lemon juice might be old. Use freshly squeezed from 2-3 lemons for that bright, zesty kick. A pinch of extra kosher salt can also enhance the natural fish flavor. 💡

Frequently Asked Questions