Combine onion, broth, rice and garlic in Crockpot™ slow cooker; stir to blend.
Cover; cook on HIGH 2 hours or until rice is tender.
Stir in asparagus and ½ cup half-and-half. Cover; cook on HIGH 20 minutes or until asparagus is crisp-tender.
Stir in remaining ½ cup half-and-half, ½ cup cheese, butter, pine nuts and salt. Turn off heat. Cover; let stand 5 minutes or until cheese is slightly melted. Fluff with fork. Garnish with additional cheese.
