Preheat oven to 350 degrees, spray a muffin pan with non-stick cooking spray. Set aside.
In a large mixing bowl, whisk together the eggs, salt and pepper. Stir in the diced ham. Pour the mixture into the muffin pan until ¾ full. Add shredded cheese on top (optional). Bake for 25 minutes or until the tops are lightly browned and cooked fully.
Recipe Notes
Stores in an airtight container in the refrigerator for at least 1 week.