
This light and flavorful Lemon Pepper Tilapia Sheet Pan Dinner has become my weeknight savior when I need something nutritious yet effortless. The bright citrus notes perfectly complement the delicate fish while roasted vegetables round out the meal for a complete dinner solution.
I first created this recipe during a particularly hectic week when I had no energy for complicated cooking. My family was so impressed with how quickly it came together that it's now in our regular rotation when time is short but we still want something homemade.
Ingredients
- Fresh tilapia fillets: about 1½ pounds offering a mild flavor perfect for showcasing the lemon pepper seasoning
- Cherry tomatoes: which burst in the oven creating a natural sauce for the dish
- Fresh green beans: providing a satisfying texture contrast and vibrant color
- Olive oil: helps everything roast evenly and prevents sticking
- Lemon pepper seasoning: the star ingredient that infuses everything with bright citrus flavor
- Sea salt and freshly ground pepper: enhancing all the flavors without overpowering
- Fresh lemon slices: for both flavor and a beautiful presentation
Step-by-Step Instructions
- Prepare Your Oven:
- Heat your oven to 400°F. This temperature is perfect for quick roasting that locks in moisture while creating gentle browning on both fish and vegetables.
- Prepare Your Pan:
- Line a large baking sheet with aluminum foil for easy cleanup. This step saves tremendous time and makes the entire meal more appealing since you won't be dreading the cleanup afterward.
- Arrange Vegetables:
- Place your cherry tomatoes and trimmed green beans on the foil covered pan. Drizzle with olive oil and season with salt and pepper then toss until evenly coated. Spread in a single layer across most of the pan leaving space for the fish fillets.
- Prepare The Fish:
- Pat the tilapia fillets completely dry with paper towels. This crucial step ensures proper browning rather than steaming. Place the fillets in the reserved space on your baking sheet then drizzle with olive oil making sure to coat both sides. Season with sea salt on both sides.
- Season And Garnish:
- Sprinkle the lemon pepper seasoning generously over the top of each fillet. Place a fresh lemon slice on each piece of fish which will infuse additional citrus flavor during baking.
- Bake To Perfection:
- Slide the pan into your preheated oven and bake for approximately 15 minutes. The fish is done when it flakes easily with a fork. For a more golden appearance you can broil for the final minute or two but watch carefully to prevent burning.
- Serve Immediately:
- Transfer to plates while hot garnishing with fresh herbs if desired. The combination of flaky fish and roasted vegetables makes for a beautiful presentation straight from the pan.

The lemon pepper seasoning is truly the magic ingredient in this recipe. I once tried to substitute regular black pepper and lemon juice but discovered the concentrated flavor of a quality lemon pepper blend makes all the difference in depth of flavor and convenience.
Storage and Leftovers
While this dish is best enjoyed fresh from the oven leftover tilapia can be stored in an airtight container in the refrigerator for up to 2 days. Reheat gently in a 275°F oven until just warmed through to prevent the fish from becoming tough or dry. The vegetables actually maintain their flavor quite well when reheated alongside the fish. I sometimes purposely make extra vegetables to use in salads or grain bowls the next day.

Vegetable Variations
This versatile recipe works beautifully with whatever vegetables are in season. During summer I often substitute zucchini slices and bell pepper strips which cook in the same timeframe. Fall brings opportunities for quick cooking root vegetables like sliced fennel or halved brussels sprouts. Winter favorites include broccoli florets or cauliflower which roast beautifully alongside the fish. The key is choosing vegetables with similar cooking times or cutting slower cooking options into smaller pieces.
Seasoning Alternatives
If you don't have lemon pepper seasoning you can create your own blend using fresh lemon zest combined with cracked black pepper sea salt and a touch of garlic powder. For a different flavor profile try an Italian herb blend with the same vegetables and fish. Mediterranean seasonings like oregano and thyme complement the tilapia wonderfully. When serving to children I sometimes reduce the pepper slightly and add a sprinkle of parmesan cheese during the last few minutes of cooking.
Frequently Asked Questions
- → Can I use frozen tilapia instead of fresh?
Yes, you can use frozen tilapia fillets. Just make sure to thaw them completely and pat them dry before cooking to ensure proper browning and to prevent excess moisture in the pan.
- → What can I substitute for green beans?
Asparagus, broccoli florets, or sliced zucchini work well as substitutes for green beans in this sheet pan meal. Adjust cooking times slightly as needed, as some vegetables cook faster than others.
- → How do I know when the tilapia is fully cooked?
Tilapia is done when it flakes easily with a fork and the internal temperature reaches 145°F (63°C). The fish should appear opaque throughout rather than translucent.
- → Can I make this sheet pan dinner ahead of time?
This dish is best served fresh, but you can prep the vegetables and season the fish in advance. Store separately in the refrigerator until ready to bake for the freshest results.
- → What should I serve with lemon pepper tilapia?
This is a complete meal on its own, but you could serve it with a side of quinoa, brown rice, or crusty bread to soak up the flavorful juices from the pan.
- → How can I make this dish spicier?
Add red pepper flakes or cayenne pepper to your seasoning mix, or include sliced jalapeños with the vegetables for added heat.