K.E.
What worked for us was getting our son on a schedule we kept religiously. We have dinner, take a bath, read stories, sing songs and say prayers. We do it in the same order at the same time every night. After we say prayers we give him a kiss and say night-night and put him in his crib. He has gotten comfortable with the schedule so he always knows what to expect at night. He is almost 2 and we have done this since he was probably about the age of your little one. The only thing that has changed is that he no longer has a bottle while we read and sing and the time has varied as he has grown. The first few nights may be a little rough, but once you settle in she'll be fine.