Cafe Patachou is located in the Simon Building. This is north of the convention center, just on the other side of the little park between the Westin and the Hyatt (Elf Park to some).
This is primarily a breakfast place for me. They open at 7am, so you can have a nice breakfast before heading to those early morning games. The omelets here are heavenly. That's why I go. They're fluffy, tasty, and just all around awesome. They come with some sides, but be sure to get the Cinnamon toast. It's slathered in cinnamon sugar and butter to a ridiculous degree.
Price wise, Patachou is a little on the steep side, but you do get what you pay for. I definitely recommend trying this place at least once if you're up early enough.
Currito is located in the food court on the third floor of the Circle Center Mall. You can get there via the hamster tube/tunnel system from the convention center.
I eat here for lunch a lot. They make a good standard burrito, but the specialty burritos are where they shine. The Mediterranean, for instance, is not what you normally see. Rice, cucumbers, blackberry humus and feta make up the non-meat portion. To go truly meat free, you can get this with tofu instead of a meat. Very tasty, very healthy. They also make a mean smoothie, including the Nutella shake. Yes...that's what you heard...Nutella shake. It's Nutella, regular chocolate sauce, ice cream, milk and ice blended together for a little taste of heaven.
The Oriental couple that owns this stall is very very nice, and they remember you if you're a regular. Really nice people running a good business.