a current student here
EMU has an admittedly good selection of food on-campus. The dining staff do their best to accommodate dietary restrictions like allergies, gluten intolerance, and vegan and vegetarian diets. There are also a number of meal plans to choose from depending on your budget and dietary needs.
The Commons is an all you care to eat buffet area that features a different weekday. You can get pasta, homestyle food, grilled food, salad, cereal, toast, fruit, stir-fry - all sorts of things. It's a cozy atmosphere and a great place to grab lunch if you have a bit of time to kill between classes.
The Eateries is more like a typical mall food court. Pizza, subs, chicken, burgers, fries, and even frozen yogurt can be found at different stations there. There are also different stands that are more like a convenience store - coolers with drinks and refrigerated items, a salad bar, a donut and bagel case, as well as candy, cookies, cereal, and chips. The selection doesn't change very much, which can make the Eateries feel overdone after a while. The different vendors also have different hours, which can be confusing.
The Marketplace is where you can find a deli, a homestyle food place, and a convenience store. It's also home to Einstein Brothers Bagels. It's very convenient if you live in the Towers or the nearby Village Apartments or Cornell Courts.
The Student Center has other options like the Green Market Bistro, Salsa Grill, and International Kitchen. It's also home to Subway, Wendy's and Starbucks. (Just a warning though: Wendy's and Subway do not accept university mealplans or flex dollars. Starbucks, however, will accept them, including for merchandise!) It can be a busy hub during weekdays and special occasions, so I wouldn't recommend it if you're short on time.
There are also Eagle Cafes located in different buildings around campus. Here, you can grab some refrigerated deli options, drinks, baked goods and other snacks if you have only a short time between classes. They can come in very handy if you don't schedule yourself a good window for lunch.