B.C.
Its tough to get some children to eat new foods. But to not get them to eat new foods can be disasterous. I know of several children that in effect tell their parents what they will eat and as a result what the parents will cook.
I had a business associate that was very effective at work, but when we would go out for a business lunch or dinner he was so picky, that he was like a three year old. I know he was passed over for promotions because of his lack of social ability.
How do you force the issue? Feed her the foods you eat, cut up for her abilities. We fed our kids what we ate and when they refused we kept feeding it to them until they got over their aversion. I remember my wife putting up with a temper tantrum from one or more of our kids because they were having to eat what we wanted them to eat. They were given a little of what they liked. In between what they wanted, my wife fed them what we wanted. When they got hungry enough they ate.
Hunger is a fantastic spice. I was a scoutmaster. After a 10 mile hike, even picky boy scouts will eat just about anything.
Good luck to you and yours.