Resected or not, you should always be on immunosuppressants with Crohn's.
As for fodmap, you may find this useful:
wiki article said...
Favorable foods (i.e. fructose equal to or less than glucose)
The following list of favorable foods was cited in the paper: "Fructose malabsorption and symptoms of Irritable Bowel Syndrome Guidelines for effective dietary management". The fructose and glucose contents of foods listed on the Australian food standards would appear to indicate that most of the listed foods have higher fructose levels.
Stone fruit: apricot, nectarine, peach, plum (caution — these fruits contain sorbitol);
Berry fruit, blackberry, boysenberry, cranberry, raspberry, strawberry, loganberry;
Citrus fruit: kumquat, grapefruit, lemon, lime, mandarin, orange, tangelo;
Other fruits: ripe banana, jackfruit, passion fruit, pineapple, rhubarb, tamarillo.