The Reds were good value for the victory in a game shown live on MUTV, as second-half goals from Charlie McCann and Teden Mengi secured a fifth-round home tie with Leeds United.
A crowd of 3,421 were in attendance at Carrow Road, creating the sort of atmosphere that will be vital in the development of the youngsters.
“We've just spoken to the lads and I'm really proud of the spirit they showed,” Ryan told MUTV. “It was good they took on the messages for what we wanted to do tactically as well against them.