First rule is no sucking through a straw!! So, whatever you give your DD, make sure there aren't any straws invovled!
I had my Wisdom's out 12 yrs. ago (approx) and remember being able to eat anything smooth -- applesauce, instant mashed potatoes/whipped potatoes, yogurt (vanilla or w/o fruit pieces), pudding, broth, milkshakes ... things w/o chunks. I was able to keep everything down w/o a problem ... and I'm the type of person who easily gets sick esp. after surgery.
I had the "twilight" anesthesia and felt fine after it wore off. I wasn't in much pain -- mainly, my jaw was just sore and I looked like a chipmunk w/bruises around my jawline. I don't think I had any bruises around my eyes, though. I know that, when I was done, we went to the McDonald's across the way and I drank a soda from the cup. The senior citizens there must have been familiar w/the oral surgeon, b/c they asked if Dr. X got his hands on me, too! They were cute!!! I do remember going shopping a few hours after the anesthesia wore off!
Looking back, it wasn't the worst thing I had to endure! The appendectomy was tougher! Good luck to your DD. She'll be more sore (and worried about her chipmunk cheeks) than anything else!