I do not have the hospitalization exp that many others have. I've been hospitalized 3 times. 2 for major flares, 1 for surgery. At both flares, I wasn't eating anything solid. My GI was okay with me eating anything that would go down so I lived off tomato soup. They had it at the nurse's station and they would microwave it all day long for me. I was starving, but couldn't eat. They didn't even bother with food service, if I remember right.
For my surgery, it was nothing but ice for 3 days, then liquid only for a few days. Again, the nurses found tomato soup for me and then I moved to a liquid/mushy diet that the food service did that was broth, jello, yogurt, etc. I ate very little.
My surgeon told me that as soon as he ordered a full diet for me, my insurance company would want me gone =) We did do full diet the last 2 days but I was scared to eat anything solid until the night before I went home.
I found that in both hospitals, they were very willing to help anyway they could. Plus I also had family/friends willing to bring stuff.