Save your money! That's the best advice. It's good to eat fast food every now and then, but do not try going out every night. First off, students will burn through their money faster than a leaf on fire. Second, the Freshman 15 does exist! There is also the Sophomore 50, so if you start to notice that there is more of you than usual, then visit the WRAC (Wellness, Recreation and Activity Center). There is a way to fix the Freshman 15; because of the way the campus is structured, you will get a cardio workout going from class to class.
There are different types of restaurants off campus, including everything from Sonic Drive-In to Southern Classic to Smoothie King. There are also two Asian restaurants: Chef Wok and Hana Japanese Sushi Bar & Grill. Overall, from carnivores to vegans, there are different foods for everyone.