How to improve a child's appetite? They don't eat meat, and soups are …

How to improve a child's appetite? They don't eat meat, and soups are hard to get them to eat. They like macaroni, yogurt, and fruits. Avocado doesn't even touch it at all. I really want to feed her healthy food. When she doesn't eat, I put the phone down, and she watches videos and eats. She used to eat everything straight away?