Cut mozzarella into 18 thin sticks. Wrap a salami slice around each and secure with a wooden pick. Place in a shallow container. Add tomatoes, olives, peppers and onions. Drizzle Italian dressing over salad. Cover and chill until ready to serve. To serve, drain and arrange salad on lettuce or spinach leaves. Crumble feta cheese over top. Yield: 6 servings.