Marinate a nice butterflied leg of lamb in a mixture of olive oil, salt and pepper to taste, two crushed garlic cloves and a sprig or two of rosemary. You can either whizz these together in a food processor or simply sprinkle them directly on the meat, as you prefer. Obviously, the first method will result in a more assertive flavor. For best results, let the lamb marinate overnight in the fridge, wrapped in plastic (a plastic freezer bag also works nicely). If you don't have that much time or haven't planned ahead, no worries; even an hour or two will lend flavor. If you've refrigerated the meat, take it out of the fridge and allow it to come to room temperature (this should take about a half hour or so).

Grill the lamb directly over a hot fire, about 10-15 minutes per side, depending on the thickness of your meat, until nicely crusted on the outside and pink, or medium-rare, on the inside.

Allow the meat to rest for a good 10-15 minutes, then slice it against the grain and place the slices over a bed of baby arugula. Season the whole liberally with salt and pepper, then drizzle with olive oil and, if you like, a few drops of lemon juice. If you like, some parmesan shavings would not hurt.