If your BB never start eating congee, you should start from lunch first. If she just eat half bowl, for example, then you need to re-fill milk after half an hour. Everyday, you increase the quantity until she can eat 1 bowl. If she doesn't feel hungry (you can know this from the time she want milk again. If the time is as usual, like 4:00p.m., that means the quanaity of congee can just replace the milk in lunch). Then you can also do the same for the meal in dinner. When everything is settled, you will have the schedule 3 meal and 2 meal of congee per day.