Place lamb on grill rack or broiler pan coated with cooking spray; broil 5 minutes on each side or until a meat thermometer registers 145 (or until desired degree of doneness). Keep warm.
Heat oil in a small saucepan over medium-high heat.
Add onion; saut 5 minutes or until golden.
Add garlic; saut 1 minute, stirring constantly.
Add apple cider; cook until liquid almost evaporates, scraping pan to loosen browned bits.
Add tomatoes; reduce heat, and simmer 5 minutes.
Add rosemary and remaining ingredients; cook 1 minute.