Wash the fish well and pat dry. Salt and pepper the cavity of the fish lightly, insert a few slices of lemon in each fish, a handful of olives and three sprigs of oregano. Toothpick the cavity closed or tie with butcher’s twine if desired.
Rub the outside of the fish with the 2 tbsp of olive oil. Sprinkle with salt and pepper. Prepare an indoor grill pan or outdoor grill by rubbing it with some olive oil as well. Grill the fish over a medium hot grill for 6-8 minutes on each side until flakey but moist inside.
Tip: The fish may also be roasted in the oven at 400° in a well greased roasting pan until cooked through, about 20-25 minutes.
This dish can also be prepared using fillets instead of the whole fish and roasting them in the oven. Simply brush fillets with olive oil, salt and pepper, and lay 1-2 sprigs of oregano and 2-3 lemon slices and some olives on top of each. Bake in a preheated oven for 10-12 minutes at 400°.