As of this writing, I'm 6 days out from my surgery.
There was also a nasty hiatal hernia that was repaired also.
So far as well as Jello, and cup o'Soup, I have had some solid food. Hamburger meat and chicken mostly.
I've had no issues keeping food down, no pain, although my stomach does have odd feeling after I eat. But I get that feeling regardless of what I eat or drink. A good burp later and all's good.
No one ever did tell me why not to eat solids, just don't.
The biggest reason I even tried was because when I finally started going to the bathroom, it's been diarrhea hell!