For the moment you will need to stick with soft foods that need little chewing. You can have just about anything you like though, and feel up to trying. I suggest you stay away from highly spiced things, and this wouldn't be the time for things like Tacos or chips of any sort. A bit of moist and mild heat on the swollen cheeks will help with that swelling, by bringing in extra blood supply to carry off the excess water. Just remember to swish, rinse and swallow after you eat anything. When you eat, just concentrate on chewing more forward of the sites, and go easy on the chomping. Your mouth will let you know if you step over the line. Stick with softer stuff for a few days, and then get adventurous.
