2 whole Branzino, cleaned (about 1 pound each)
1 tablespoon olive oil
1 teaspoon kosher salt
1/2 teaspoon freshly ground black pepper
1 lemon, sliced into 1/4"-thick rounds
Prepare your grill (or grill pan) for medium-high heat. Drizzle the olive oil over the skin of both fish. Season the inside of each fish with half the salt and pepper. Place a few lemon slices inside each fish. Grill the fish about five minutes per side, until the skin is crisp and the flesh is opaque.
Serve with extra lemon slices.