Place chicken and tomatoes in instant pot
Pour in chicken stock
Sprinkle Italian seasoning, salt and pepper over chicken
Place lid on and seal vent
Set pressure to high, cook 5 minutes
When cooking is done, cancel cook time and quick release pressure
Open lid, stir in dairy free cream cheese, dairy free Parmesan and spinach
Stir to combine
Add in cooked gluten free pasta, stir again
Let dish sit 5-10 minutes to thicken
Remove from pot and serve
Garnish with fresh chopped basil, additional dairy free Parmesan shreds or red pepper flakes