In a second shallow bowl combine egg and milk. Whisk to combine.
Dunk chicken tenders (or breasts) into flour to coat, then dunk into egg wash mixture, and finish with a final coat of flour. Repeat for all chicken tenders.
Cook pasta according to package, set aside. Toss with a little bit of oil to help prevent the pasta from sticking to each other.
Preheat Blackstone to medium heat.
Add a good amount of oil and add coated chicken.
Cook on both sides for 7-8 minutes per side or until chicken has reached an internal temp of 165.
Add 2 tbsp of marinara to each piece of chicken and then top with mozzarella. Allow cheese to melt, covering if needed.
Add pasta to the griddle and top with remaining sauce. Allow to cook on medium until warmed.