Clean both fish and make diagonal slashes on one side.
Season with salt, black pepper, oregano, and paprika on all sides.
Squeeze a lemon inside of fish and put it together with greens, onion, and garlic.
Rub the olive oil over the top surface of both fish.
Put lemon slices into the slashes.
Line the baking dish with parchment paper, and place both fish on it.
Bake at 175-180°C for 15-17 minutes.Bon Appetit!