Preheat your oven to 200°C (392°F). Line a baking sheet with parchment paper for easy cleanup.
Pat the seafood fillets dry with paper towels to remove excess moisture, ensuring they bake evenly.
In a small bowl, mix chopped herbs, lemon zest, lemon juice, olive oil, and minced garlic to create a bright, fragrant marinade.
Use a brush to coat the seafood evenly with the herb-lemon marinade, making sure every piece is well covered.
Arrange the coated seafood fillets on the prepared baking sheet in a single layer, leaving space between each piece.
Bake in the preheated oven for 12-15 minutes, or until the seafood is just opaque and begins to develop a slight golden edge. Use a meat probe thermometer to ensure the internal temperature reaches about 60°C (140°F) if desired.
While the seafood bakes, brush the fillets with melted butter to add richness and help develop a slight caramelized finish.
Remove the seafood from the oven and let it rest for 3 minutes to allow the juices to settle.
Squeeze fresh lemon over the baked seafood and sprinkle with additional chopped herbs for a vibrant finish.
Serve immediately with your favorite sides for a light, flavorful holiday dish.