01 - Heat oven to 425°F and line a baking tray with parchment paper.
02 - Pat cod fillets thoroughly dry using paper towels to ensure crisp skin.
03 - Rub olive oil over both sides of each fillet. Season the flesh side with salt, pepper, and smoked paprika if using.
04 - Place cod fillets skin-side up on the prepared tray, pressing gently to ensure contact.
05 - Distribute minced garlic and lemon zest evenly over the fillets.
06 - Arrange lemon slices around fillets and drizzle with half of the lemon juice.
07 - Bake for 12 to 15 minutes until cod is opaque and skin is golden and crisp. Optional: broil for 1 to 2 minutes for extra crispness.
08 - Remove from oven, drizzle with remaining lemon juice, and sprinkle with chopped parsley.
09 - Serve immediately with preferred side dishes.