I used homemade chicken stock cubesfor this recipe. You can use chicken taste maker or soup cubes instead. If using taste maker or cubes, use 2 cubes and add it to 1 cup of water and use in place of chicken stock. Keep in mind that the readymade soup cubes can be salty, so adjust the qty of salt accordingly.
For a veg version, you can skip chicken and use mushroom and spinach or broccoli and use veg stock instead.
It's better to serve this pasta immediately. However you can finish the preps earlier and do the assembling just before serving. Cook the pasta ahead and also the sauce part,till adding milk. Just before serving, add milk and pasta and serve immediately. If there is left over pasta, add a bit of milk while reheating.
You can increase or reduce the qty of cheese to suit your requirements. Also instead of cream cheese, you can add 1/4 - 1/3 cup of whipping cream.