01 - Preheat the oven to 400°F. Lightly grease a baking dish large enough to arrange the fillets in a single layer.
02 - Pat haddock fillets dry with paper towels and place them evenly in the prepared baking dish.
03 - In a small bowl, whisk together olive oil, lemon juice and zest, minced garlic, parsley, dill, salt, black pepper, and paprika until combined.
04 - Pour the herb mixture evenly over the haddock fillets, spreading to ensure thorough coverage.
05 - Arrange lemon slices atop and around the fillets within the baking dish.
06 - Bake for 15 to 20 minutes, until the fish flakes easily with a fork and appears opaque throughout.
07 - Remove from oven, sprinkle with additional chopped parsley, and serve immediately.