Hi. U r going to get alot of input. i would have her track what she is eating on myfitnesspal. Every morsel for one week. Measurements and weigh before she starts. Her own Self discovery is important.
Also make sure she is drinking plenty of water. Have her shoot for 100 oz throughout the BETWEEN main meals and before she goes to bed. I never drink anything with my meal. Just helps me to put down more food faster
Report back on what she discovers. Post up daily cals and macro split. Be interesting to see what she realizes just by doing this.