Spread the lemon and orange zest on a plate and let them air-dry for 5 to 10 minutes, if time permits, so they don’t clump in the blend.
Combine the citrus zest, oregano, thyme, dill, garlic powder, onion powder, smoked paprika, kosher salt, coriander, and black pepper in a small bowl and stir to combine.
Pat the fish dry and brush with olive oil.
Sprinkle the seasoning mixture over the fish and pat to make sure it sticks.
Bake on a sheet pan for 10 to 12 minutes or until cooked through.
Top with optional chopped fresh parsley and serve immediately.
Notes
Storage - leftovers can be saved for up to 3 days in the refrigerator in an airtight container.