Toast muffin on a griddle or skillet over medium-high heat, cut side down, until golden brown.

Spread cheese on the toasted side of each muffin half.

Cook turkey on griddle until heated through; set aside.

Spray a skillet with nonstick cooking spray and break the egg into prepared pan. Cover with a lid for 3-5 minutes or until the egg is set.

Top bottom half of the muffin with turkey, egg and remaining muffin half.