My puppy is a picky eater.....I hate buying expensive dog food that she's going to turn her nose up at....as she's done that to several types of food already.......

does anyone have picky eaters eating Canadae? (not sure I spelled that right) I have been considering getting it....lately I've been making her puppy food...and she loves it....but not sure it will help her coat grow out...I also can't get her to eat the supplement that I got for her as well....lol HELP!!