You are a student (or maybe your not, yet you might temporarily feel like you are living on a student budget at the moment) and perhaps you have had enough of eating the same food over and over, especially fast food. However there are a few great places to hang out for lunch or dinner once in a while, places that definitely have that expensive glow of ambience to them in some cases, and their meals are literally that cheap, so you should not have to break the bank, well not too much anyway.
I love Lentil as Anything, as featured in my Best Cheap Eats in Melbourne article where all are welcome, and it makes way for a pay for what you feel kind of experience, and I also like Crossways in Swanston Street for a cheap vegetarian feed with free top ups if you are really hungry. If you love quality, filling vegetarian food then check out these establishments once in a while. All of the establishments covered in my "Best Cheap Eats in Melbourne" article with the exception of Mamma Vittoria are great cheap eats for students as well.
While still in St Kilda, I have found a great hang out spot for students (and people who are cash-strapped alike and yet still want to eat out) at The Banff on Fitzroy Street. We are talking about quality $5.50 pizzas if you order and eat your dinner before 5:30pm. A great way to fill that empty tum after spending time at the library or after an intensive lecture or tutorial. Great filling dishes for under $9.
Miss Chu is also popular for students and office workers alike along Exhibition Street. Fast and no fuss service where pho is served with a unique twist with cheap prices. Get there as early as you can for lunch, this establishment gets incredibly busy.
Otherwise if you like getting a free soft drink with your sub at Subway for students, then continue that. Otherwise, any of the cheap eateries along Swanston Street near the QV area are also worth considering once in a while as a last resort. Hope you like these great once in a while cheap eat alternatives I have suggested in treating yourself on a student's budget, and especially after some intense study periods.