Follow the instructions for roasting meat discussed in How To Roast Meat In Microwave By Timer & Auto Weight or How to Roast a Tender Cut of Meat In Microwave on Auto Sensor
With a sharp knife cut shallow pockets all over the flesh. Insert slivers of garlic or pieces of fresh rosemary into the pockets. Brush with oil and cook as directed in the basic roasting instructions.
Also Read: Microwave Roast Lamb with Crackling Recipe