01 - Preheat oven to 400°F. Line a baking sheet with parchment paper or lightly grease an oven-safe dish.
02 - Pat trout fillets dry with paper towels and place skin-side down on the prepared baking sheet or dish.
03 - In a small bowl, whisk together olive oil, lemon juice, lemon zest, minced garlic, parsley, dill, thyme, salt, and black pepper.
04 - Spoon the herb mixture evenly over each fillet, ensuring full surface coverage.
05 - Place one lemon slice atop each fillet.
06 - Bake for 15 to 18 minutes or until the trout is opaque and flakes easily with a fork.
07 - Remove from oven, garnish with additional fresh herbs if desired, and serve immediately.