Yep
Make up a white sauce with some milk (cream if you can afford it), cornflour to thicken, and water, then grate some cheese in, heat it until smooth goop and add to your pasta ... voila! A disgusting home-made alternative to store-bought cheesy pasta sauce.

Yes, I used to be a student. Can you tell?

EDIT: I forgot the egg. Add an egg. A little month-old milk will do in place of egg.
(hangableautobulb is an anagram of the best album ever, on, Tue 5 May 2009, 17:10, Reply)