Snap off tough ends of asparagus.
Combine yogurt and mustard; stir well. Set aside.
Coat asparagus with cooking spray. Sprinkle lightly with salt.
Combine wine, garlic, and rosemary.
Place lamb chops on one end of a broiler pan coated with cooking spray. Brush chops with half of wine mixture. Broil 8 minutes. Turn chops, and brush with remaining half of wine mixture. Broil 2 minutes, and add asparagus to pan. Broil 4 to 5 minutes, turningasparagus every 2 minutes, until asparagus is crisp-tender and chops are done. Remove asparagus and chops from pan; sprinkle with freshly ground pepper.
To serve, place half of asparagus and 2 lamb chops on each of two serving plates. Top asparagus with yogurt mixture.
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