Whisk together the oil, vinegar, garlic, parsley, dill, oregano, and pepper.
Butterfly the lamb and pepper generously on both sides.
Cut some slits in the meat.
Marinate the lamb for 2 to 24 hours
Drain marinade from lamb and put lamb in 425F oven in shallow roasting pan for about 45 minutes. You want an internal temperature of 135F. Let lamb rest before serving.
Calories: 669kcal | Carbohydrates: 7g | Protein: 60g | Fat: 45g | Saturated Fat: 9g | Polyunsaturated Fat: 5g | Monounsaturated Fat: 28g | Cholesterol: 187mg | Sodium: 205mg | Potassium: 1119mg | Fiber: 3g | Sugar: 0.4g