I am Dr. Hoellering and here to help you.
I am sorry you had this problem repeatedly. But it's not the food you eat that bulid the scar tissue, it is your genetic tendency to build too much scar tissue, and you can't influence it.
Your intenstines have to move to digest the food, so if you went on a diet they would still move and get endangered to strangle themselves in scar tissue again.
So you may eat whatever you want. I hope that the surgeons were quite careful and so prevented the development of more scar tissues.
You might want to stay away from foods that cause flatulence.
I wish you the very best and thank you for a friendly rating of my help!