SO. MUCH. FOOD.

Coming to Mizzou, you will (probably) be overwhelmed with how many options there are for dining.  All of the residential locations are primarily there for students who are living on campus and have a meal plan. You should check all of those places out as a freshman, because they are dangerously expensive out-of-pocket. Non-residentail locations are normally in highly populated areas of campus that are frequented by visitors and older students. These locations accept cash, credit and EZ charge (optional "debit" account on your student ID) and are more moderately priced. The dining website will give you all of the information you need about daily menus, hours, and nutritional facts.  I'll give a small rundown of all the places that I have eaten on campus this year, and let you know about some of your options downtown for when you're tired of campus food.

Resdiential (Meal Plan)
Rollins (buffet style) - this is located in Rollins commons and is connected to Hudson and Gillett residence halls.  They have pizza, salad bar, deli, grill, and more homestyle entrees during meal time.  The deli here isn't that great, it's basically lunchmeat and bread that you put together yourself.  The grill is really great, but it isn't open flame so the grilled chicken here always tastes rubbery (don't get it!).  The entrees are generally really delicious.  If you like chicken pot pie, you'll like their chicken pot pie. Nothing is really weird tasting or eccentric here.
Plaza 900 (buffet style) - located fairly centrally.  They have deli, salad bar, grill, on stage (they cook in front of you) and entrees.  The deli here is delicious! It's sort of subway style where they make the sandwich in front of you and can toast it if you like.  The grill isn't anything special and most of the time the food has already been sitting there a while.  The entrees available at the station aren't as good as Rollins, but it depends on what is offered that day. On stage is delicious, but slow.  They usually have pasta or stir-fry, which are really popular, but they also run out of ingrediants a lot because of the popularity.
Dobbs - located by Laws, Lathrop and Jones residence halls.  They have a great grill here.  It's open-flame and everything tastes like a restaurant. They also have pasta and a deli available all of the time.  The entrees are really good here, too.  It's a bit of a walk but since it's close to the stadium, a lot of people come here on game days.
Emporium - grocery store type place.  They have pretty generic things that you can purchase with your meal plan and store in your dorm room like juice, milk, meals, cereal, etc.  This is a great place to come get rid of excess meals you might have or get some snacks for when you don't have time to go to a dining hall.
Sabai - located in Johnston residence hall. This is a "Southeast Asian" restaurant that has the same menu daily. Some things are very good, but others are not.  You should definitely talk to people and see what they think of it before you decide on an item.  I went here a lot last semester because it was in my dorm. Some items are very traditional Southeast Asian and don't taste much like what you would get at other Chinese restaurants.  It's a good place to go to because it isn't really that busy during lunch. Things to try: Sweet Chili Chicken or Rice Bowl.
Baja Grill - located in Bingham Commons by Schurz, College Ave, and Hatch residence halls.  This is a really delicious place to eat. Like Sabai, it has the same menu daily.  It's Mexican food like quesidillas, tacos, and nachos.  Sometimes things aren't cooked completely, which is a little bit of a setback, but it's generally pretty good.  This place is very busy around dinner time, but there isn't a line at all around 2-2:30. Things to try: Carne Asada, Grilled Caesar Salad, & Tropical Coolers

Non-Residential
Starbuck's - pretty self explainatory, but it's awesome that we have one on campus!
Infusion - sort of like starbucks, but they also have things like ice cream and shakes.
Kate & Emma's - Panera Bread type place. They have wraps and sandwiches.
Mort's - great burgers and waffle fries! try the buffalo chicken sandwich or the shack sauce
Wheatstone Bistro - another Panera type place
Subway - located in Mizzou Market in Pershing Commons!
There are more, but these are some of the more popular ones :)

Downtown - google any of their websites for more info!
Noodles & Company
Which wich? - sandwich shop
Ingrediant
Chipotle
The Heidleberg - kind of like Applebee's
Shakespeare's Pizza
Gumby's - cheap pizza, open late! Try the Clay-Fusion (half-pizza, half cheesy bread)
Subway
Flat Branch - delicious restaurant and if you're visiting with your parents, they're also a brewery with many unique drafts
Yogoluv - by the ounce frozen yogurt
Domino's pizza

In short, there is always somewhere to eat on campus and it's definitely worth your while to check out what downtown has to offer!