There is a section called Diet,Nutrition and Fitness. I wonder if that section would be of any help. There is also a subsection for people who are Overweight with Crohns Disease. That also might be a place for help.
Everyone is different
Many find EEN ( exclusive enteral nutrition - no food formula only)
To reduce inflammation similar to steriods
Some use ensure or boost
You can then set your calories for the day
Healthy food wise
You can still do veggies
Just cook them well
Ds has tried the crohns exclusive diet