01 - Preheat oven to 400°F. Line a baking tray with parchment paper or lightly grease with cooking spray.
02 - Place salmon fillets on the prepared baking sheet, skin-side down if applicable.
03 - In a small bowl, whisk together olive oil, melted butter, lemon juice, minced garlic, salt, pepper, and dill until well combined.
04 - Spoon or brush the marinade mixture evenly over each salmon fillet, ensuring complete coverage.
05 - Arrange lemon slices on top of each fillet if desired for enhanced presentation and flavor.
06 - Bake for 12–15 minutes, or until salmon flakes easily with a fork and reaches an internal temperature of 145°F.
07 - Remove from oven, garnish with freshly chopped parsley, and serve immediately while hot.