Ways to change it: first, put the meal there at dinner time to remind him to eat, but he can eat whenever he wants and will not forget to eat. After eating, adults will throw out the food they don't eat. Second, there are no snacks to eat before dinner (fruit is ok). Third, don't ask him what he wants to eat every meal. You should pay attention to what he likes to eat, know what children should add, and match the meals suitable for children scientifically and flexibly.
The last thing to say is: the child is not hungry or frozen, but eats too much. If you eat too much, you can rest assured that you will cure your child's anorexia! It will definitely work!