Line a cookie sheet with aluminum foil (or silpat if you have it).
Place the Cheez-it’s in a zip-lock baggie and give it to your kid to play catch, touch football, whatever. Smack the back a few times with a rolling pin… get the cheese-it’s crushed, but don’t worry if there are some larger pieces. Pour into a shallow bowl or plate.
Crack the eggs into a bowl and add the water. Whisk together until combined well. (something else your child can do!).
Dip the chicken in the egg mixture, then roll around in the crushed Cheez-it’s (kids love this part!)
Place on the cookie sheet, continue until all the chicken is coated.
Lightly spray all coated chicken with the cooking spray.
Bake at 350°F about 15 -20 minutes (start checking the smaller ones after 10 minutes. I always pull them out as they get cooked through so that the smallest isn’t incinerated by the time the largest piece is done cooking).