Congrats on getting her into the coop! Sounds like she's finding most of what she needs while out foraging. They really prefer the tasty things they can find while out to the pellets so they will try to eat as much of what they can get foraging before eating pellets to get the rest of what they need. As for the fruits and things, it's a possibility that in her old home, wherever she came from, they never gave treats like that so she doesn't recognize them as something edible. A lot of birds that come here have to learn from the rest of my flock that those bananas I'm throwing are delicious before they start eating them too.