In a medium bowl, blend the eggs, salt, pepper, and skim milk and beat until eggs are fluffy. Stir in cheese and set aside.
Spray a large, oven-proof skillet with nonstick cooking spray and heat over medium-high heat. Add potatoes and turkey in the skillet, stirring until just warm.
Pour eggs over potato and turkey mixture, stirring until eggs just begin to set on the bottom, but are slightly uncooked on top.
Turn on oven broiler, and place pan in oven. Cook for 3-4 minutes or until eggs are completely set and top of frittata is lightly golden brown.
Cool for 5 minutes before serving.