01 - Preheat oven to 400°F. Lightly grease a baking dish large enough to hold tilapia fillets in a single layer.
02 - Pat tilapia fillets dry with paper towels and place them evenly in the prepared baking dish.
03 - In a small bowl, whisk together melted butter, fresh lemon juice, lemon zest, minced garlic, chopped parsley, paprika, salt, and black pepper until well combined.
04 - Evenly pour the lemon butter sauce over the tilapia fillets, ensuring they are fully coated.
05 - Bake in the preheated oven for 15 to 20 minutes, or until fish flakes easily with a fork and is opaque throughout.
06 - Garnish with lemon slices and additional parsley if desired. Serve immediately.