Place the Chicken in the Instant Pot and pressure cook for 10 minutes.
Natural release for at least 10 minutes. (This will keep the chicken from losing moisture)
Transfer chicken to stand mixer to shred or shred with forks.
Add 4oz can of diced green chilies to shredded chicken.
Place tortilla in a frying pan, and layer with cheese, chicken, enchilada sauce, and more cheese. Cover with another tortilla and cook.
Cook until golden brown and the cheese is melted.