I ate regularly too. I had to stay in hospital for a couple of weeks after surgery as was still on TPN but (as much as you can with hospital food) I tucked in to pretty much everything. As ByeByeUC says chew the food really well, and perhaps have smaller meals to start and build up from there. Try not to be scared, for the past year with my ileo I have been able to eat food groups that I couldn't prior, so much so I'm now a little aprehensive of having the reversal done!
Happy eating :)