How can I reduce the amount of money that I spend on food so that I can save for university?

I pay $350 month for rent, $600 for food, $150 for cable/internet and $75 for power and I make $1200 a month after taxes…The rent, power and cable/internet can’t go any lower…only the food budget can be reduced…Where can I save on food? I live in a small town and I don’t have a car, smoke, drink or use drugs.

My food bill is mostly milk, oatmeal, bread, fruits and vegetables, baloney sandwiches, and a really good supper…Sometimes I eat out at a fast food place and I eat a meat for supper as a main dish.
I owe $25,000 in health care and canadian/alberta student loans and I split rent with my family…I earn an extra $800 per year working extra over the summer and I get $700 back from income tax per year.
How can I afford to go back school…without a student loan?