By giving her the pedisure and the other thing you are guaranteeing that she will continue to be a picky eater. You are the parent and need to guide her into healthy eating habits - pediasure isn't it.
If you want her to have some form of milk, give her milk, almond milk, rice milkā¦and give her solids. The only way she is going to learn to eat and like solid food is to have her eat. Let her take 2-3 bites of healthy foods. If she pitches a fit, so what. You are the grown up and deal with learning how to deal with her tantrums or she will walk all over you in this and everything else.