Subject: what does preteens have to eat in order to have an average of 2000 calories

hello -
i'm a mother who has been lately worry about the nutrition of my daughter.
i have found out that people must consume at least 2000 calories a day,no more 
no less.my daugther is 12 years old and i'm worry about her health. she's 
preteen and i want her to be as healthy as she can,but i would really like you 
to suggest me what to feed her,like a shedule.food for breakfast,lunch,dinner.
i would really like a schedule based on 2000 calories. i know it would be a 
lot of work but i don't know what to do.i don't know how to balance what she 
eats.
                         i hope you may understand me,
                                    sincerely, 
                                           Ana 

Re: what does preteens have to eat in order to have an average of 2000 calories