Yeah it can be hard getting enough food at uni, I'm always tempted to cut corners.
Look at some of the jars of sauce, I have a housemate who is domestically inept but can cook pasta with dolmeio (mentioned above) or Chili.
Cook your mince in a pan with some oil, adding half a chopped onion part way through.
At the same time you'll want to be cooking some rice. 1 part rice 2 part cold water, put it in a saucepan with a lid and bring it to the boil, turn the heat right down and just leave it.
Another easy meal is fajitas, cook up 1 - 2 chicken breasts with some red pepper and onion, add in a pack of flavouring (ol el paso is good) and add to wraps.
(As it was poorly presented last time I will reiterate) Try to smuggle in some snacks, even if its just something small like some fruit or some toast with peanut butter.