In large skillet, heat oil over medium-high heat. Add beef; cook and stir 5 minutes or until beef is browned. Transfer beef to 3- to 4-quart slow cooker.
Stir in chickpeas, broth, garlic, kale, potato, onion, raisins, harissa and ½ cup water. Cover and cook on high 4 hours or low 8 hours or until beef and potatoes are tender. Makes about 8 cups.
Serve stew sprinkled with olives.