Season cod fillets with salt, pepper, and lemon zest.
Dredge fillets lightly in flour, shaking off excess.
Heat olive oil in a skillet over medium-high heat.
Add cod fillets to the hot skillet.
Cook until golden brown, about 3-4 minutes per side.
Flip fillets carefully to avoid breaking.
Squeeze fresh lemon juice over the cooked cod.
Garnish with chopped parsley and lemon wedges.
Serve hot with your favorite sides.