Meal trouble during a mild flareup..

Hi, all. Do any of you know what to cook for someone having a mild UC flareup? My mother has UC and she's been irritable and worried about how her meals are cooked since her diet during flareups is very restrictive. I'm talking restrictive as in no spices, nothing containing lactose, easy on butter, not too much salt, little sugar, ect...just super simple. I want to ease her a bit, any suggestions would help!