Remove the lower leaves from the rosemary sprigs, leaving the tips intact.

Heat a gas or charcoal grill to medium. Thread the lamb and onions, alternating each, onto the rosemary skewers, using 3-4 cubes of meat per skewer. On separate rosemary skewers, thread the figs. Do not mix meat and figs on the same skewer, as the figs cook faster than the meat.

Brush the lamb/onion skewers lightly with oil and season to taste with salt and pepper. In a small bowl, mix the lemon juice, garlic, and minced rosemary. Brush a little of this mixture on the lamb/onion skewers and the fig skewers.

Grill over medium heat, turning the skewers as each side browns and taking care to avoid flare-ups. These will cook quickly, so watch carefully. Cook the lamb skewers for 6-10 minutes for medium-rare, and the fig skewers for 4-5 minutes. Serve immediately.