This easy Oven Baked Tilapia Recipe delivers flaky, tender fish in under an hour with garlic butter and fresh lemon. Perfect for quick weeknight dinners with minimal cleanup!
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Quick Recipe Overview
WHAT: Simple oven-baked tilapia with butter, lemon, and fresh parsley for a delicious weeknight dinner.
WHY: This recipe transforms mild tilapia into tender, flaky fish in just 30 minutes with simple ingredients.
HOW: Season tilapia fillets, top with butter, bake at 400°F until opaque, then finish with fresh lemon juice.
Jump to:
- Quick Recipe Overview
- Why I Love Making Oven Baked Tilapia Recipe
- Ingredient Notes
- Oven Baked Tilapia Recipe
- How To Make Oven Baked Tilapia Recipe
- FAQs for Oven Baked Tilapia
- My Best Tips for Making Oven Baked Tilapia Recipe
- What to Serve With Oven Baked Tilapia
- Storage & Reheating Tips
- Similar Recipes to Try
- More Favorites From Longbourn Farm
Why I Love Making Oven Baked Tilapia Recipe
There's a reason this oven baked tilapia has become my weeknight dinner staple. After years of trying complicated fish recipes that left me stressed and the kitchen messy, I realized the best approach is often the simplest.
This baked tilapia recipe is forgiving. Whether you're a confident cook or someone who's intimidated by seafood, the recipe works beautifully every time. The gentle oven heat and butter create a self-basting effect that keeps the fish moist and fork-tender, while the fresh lemon and parsley add brightness without overwhelming the delicate flavor.
I make this recipe at least twice a month because it fits perfectly into our busy schedule. From fridge to table in under an hour, with almost no cleanup? That's my kind of dinner. Plus, my kids actually eat it without complaint, which in my house is basically winning the lottery.
🩷 Melissa
Your fish is done when it hits 165°F internal temperature and flakes apart easily with a fork.
Look for opaque, milky-white flesh throughout—no translucent or glassy spots.
No thermometer? No problem. Press the thickest part of the fillet gently with your finger—it should feel firm and spring back slightly, not mushy or rock-hard.
Ingredient Notes
Butter: Use real butter rather than margarine for the best flavor and texture. The butter bastes the fish as it melts, keeping it moist and adding richness.
Fresh Parsley: Fresh parsley adds a bright, herbaceous note that complements the lemon beautifully. In a pinch, you can substitute fresh cilantro, dill, or basil. Dried parsley works too, but use half the amount.
Lemon: A fresh lemon is essential for this recipe - the bright acidity cuts through the richness of the butter and enhances the fish's natural flavor. Bottled lemon juice doesn't provide the same fresh, vibrant taste. Consider adding lemon zest for extra citrus flavor.
For the exact amounts needed, please see the recipe card below.
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Oven Baked Tilapia Recipe
Equipment
Ingredients
- 6 tilapia fillets
- 1 teaspoon salt
- ½ teaspoon pepper
- 6 tablespoons butter (one for each fillet)
- 2 tablespoons parsley (minced, fresh)
- 1 lemon
Instructions
- Preheat oven to 400ºF.
- Line sheet tray with parchment or spray with cooking spary.
- Place the tilapia fillets on the sheet tray.6 tilapia fillets
- Season them wtih salt and pepper.1 teaspoon salt, ½ teaspoon pepper
- Place a tablespoon of butter on each fillet.6 tablespoons butter
- Bake for 20 minutes or until the center reaches 165ºF.
- Once finished, squeeze the fresh lemon over the tops and sprinkle with chopped parsley.2 tablespoons parsley, 1 lemon
Notes
- Boost mild fish with spices: Seasoning is key to making tilapia more delicious since it has a mild flavor. Add a pinch of paprika, cumin, oregano, thyme, or red pepper flakes before baking for some heat and depth.
- Steam in parchment or foil: To prevent the fish from drying out while baking, wrap the fillets in parchment paper or aluminum foil. This creates a steam effect, keeping the fish moist and tender.
- Don't overcook the delicate fillets: Fish cooks quickly, and overcooking can result in a dry texture. The fillets should be opaque and flake easily with a fork when done. If you want a slight crispy texture on top, finish with a couple of minutes under the broiler at the end of the baking time.
- Bake from frozen if needed: For easier meal prep, bake the fish from frozen. It will just need to cook a little longer to reach the flaky finished stage.
Nutrition
How To Make Oven Baked Tilapia Recipe
Step 1: Put the tilapia filets on the baking sheet and season well with salt and pepper. Place one tablespoon of butter on the top of each fillet and bake.
Step 2: Squeeze a little lemon juice over the tops of the fish and garnish with some fresh chopped parsley sprinkled over the top. The fish flakes easily when done.
FAQs for Oven Baked Tilapia
Line your baking sheet with parchment paper or lightly spray it with cooking spray before placing the fillets. The butter on top of each fillet also helps prevent sticking. Avoid using aluminum foil directly under the fish unless you spray it well, as tilapia tends to stick to foil.
Dry tilapia usually results from overcooking. Fish continues cooking even after you remove it from the oven, so take it out as soon as it reaches 165°F. The butter in this recipe helps, but wrapping the fillets in parchment paper or foil creates a steam effect that prevents drying.
Since tilapia has a mild flavor, it pairs beautifully with garlic butter, paprika, cumin, chili flakes, or Italian herbs. Lemon pepper, cajun seasoning, and fresh herbs like parsley, dill, or cilantro all complement the delicate taste without overpowering it.
Yes! You can bake frozen tilapia fillets without thawing them first. Simply add 5-8 minutes to the baking time and check that the center reaches 165°F. The fillets may release more liquid during cooking, so pat them dry before seasoning for the best results.
My Best Tips for Making Oven Baked Tilapia Recipe
☞Don't Skip the Parchment Paper: While you can spray the pan, parchment paper creates the most foolproof non-stick surface and makes cleanup effortless. It also helps the fish cook more evenly.
☞Season Generously: Tilapia's mild flavor means it can handle bold seasoning. Don't be shy with the salt and black pepper, and consider adding a pinch of paprika or garlic powder for extra depth.
☞Room Temperature Fish Cooks Better: Let your tilapia sit at room temperature for 10-15 minutes before baking. This ensures more even cooking and prevents the outside from overcooking while the center catches up.
☞Watch the Clock Closely: Fish cooks quickly, and the difference between perfectly flaky and dry is just a few minutes. Set a timer for 18 minutes and start checking then, especially for thinner fillets. Use an instant-read thermometer to check for 165°F internal temperature.
☞Finish Under the Broiler for Texture: If you want a slightly crispy, golden top, turn on the broiler for the last 2-3 minutes of cooking. Watch it carefully as it can go from perfect to burnt very quickly.
What to Serve With Oven Baked Tilapia
Roasted veggies like asparagus, green beans, or Brussels sprouts complement the mild fish perfectly. Garlic mashed potatoes or rice pilaf make excellent starchy accompaniments.
Serve over a bed of mixed greens or alongside a crisp green salad for a lighter meal. Coleslaw adds a refreshing crunch that contrasts nicely with the tender protein.
Create a complete meal by serving the tilapia over quinoa, couscous, or brown rice with steamed broccoli and a drizzle of tahini sauce.
Pair with creamy polenta, buttered egg noodles, or scalloped potatoes for a more indulgent dinner. Lemon slices on the side add a fresh, bright touch.
Storage & Reheating Tips
Refrigerator Storage
Store leftover baked tilapia in an airtight container in the refrigerator for up to 3 days. Let the fish cool completely before storing to prevent condensation that can make it soggy.
Freezer Storage
While fresh-baked tilapia is best, you can freeze leftovers for up to 2 months. Wrap individual portions tightly in plastic wrap, then place in a freezer-safe container. Thaw overnight in the refrigerator before reheating.
Reheating
The best way to reheat baked tilapia is in a 275°F oven for 10-12 minutes, covered loosely with foil to prevent drying out. You can also reheat gently in a skillet over medium-low heat with a splash of water or broth.
Make-Ahead Tips
While fish is best cooked fresh, you can prepare the fillets by seasoning them and placing them on the lined baking sheet up to 4 hours ahead. Cover with plastic wrap and refrigerate, then add the butter and bake when ready to serve.
Meal Prep
Baked tilapia works well for meal prep when used cold in salads or grain bowls. The texture changes slightly when reheated, so consider planning cold applications if meal prepping for the week.
More Favorites From Longbourn Farm
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Alli
We love tilapia made this way.