1) Heat the olive oil in a pan over a medium-high heat; add the sliced garlic and cook until it just begins to turn brown. Add the rosemary and continue cooking until rosemary is crispy and garlic is nicely brown. Allow to cool and stir in lemon zest.
2) Prepare a hot barbecue. Season the lamb chops with salt and pepper. Brush with the oil marinade and barbecue to desired doneness; medium-rare is recommended. Arrange on a platter, spoon solids of rosemary mixture on top and serve.