01 - Preheat the oven to 400°F. Lightly grease a baking dish large enough to hold the fillets in a single layer.
02 - Pat halibut fillets dry with paper towels and place them evenly in the prepared dish.
03 - Whisk olive oil, lemon juice, lemon zest, minced garlic, salt, black pepper, and thyme together in a small bowl.
04 - Brush the marinade evenly over all sides of the halibut fillets.
05 - Bake for 12 to 15 minutes until the fish is opaque in the center and flakes easily when tested with a fork.
06 - Remove from oven, sprinkle with chopped fresh parsley, and serve immediately with lemon wedges.