Preheat oven to 400°F

Cut chicken into strips

Place Doritos in a ziploc bag and crush until you have 1 1/2 cups of crushed Doritos (not powder)

In another small bowl beat together egg and milk

Dip each strip in the egg mixture and then into the Doritos mixture. Press the chips into the chicken making sure the whole strip is coated

Place on a foil lined pan and lightly spray the tops of the chicken with cooking spray

Bake 15-17 minutes or until cooked through