1. Preheat oven to 400°F. In medium saucepan, bring 2 quarts water to boil over high heat. Stir in macaroni and cook for 11-12 minutes or until tender, stirring occasionally. Drain macaroni and return to pan.
2. In small bowl, lightly whisk egg with fork. Add egg, cheese packet, shredded cheese and ham to macaroni and stir until combined.
3. Lightly spray 6-count jumbo muffin pan with cooking spray and spoon mixture equally into muffin cups. Bake for 15-17 minutes or until edges are golden brown. Let cool for 5-10 minutes before removing from pan and serve warm.