Rub the fish with a mixture of lemon zest, coarse salt, garlic clove, herbs, and 2 Tbs olive oil.
Heat the broiler. Sprinkle the fish with pepper.
Broil the fish for about 5 to 8 minutes, depending on thickness, or until firm. When done, the fish will still be firm and juicy but opaque, and a thin-bladed knife will pass through it fairly easily.