1. Combine pumpkin, milk, sugar substitute, cinnamon, ginger and salt in medium bowl; set aside.
2. Combine gelatin and water in small microwavable bowl; let stand 2 minutes. Microwave on HIGH 40 seconds to dissolve gelatin. Stir into pumpkin mixture. Gently fold whipped topping into pumpkin mixture until well combined.
3. Spoon into 8 small dessert dishes. Refrigerate 1 hour or until slightly firm.