All these ingredients are based on what you like- how much pasta you want, how creamy you like it, how strong of a parmesan flavor you like. I will add my estimations when making this for myself.
make the pasta until your desired consistency. drain the water and return pasta to the pot
stir in the sour cream or Greek yogurt until noodles are covered.
dump in the parm and mix well. Enjoy!
Perfect for late night bites just to fill the tummy quickly.