After trying many different foods, we finally settled on Innova Evo Chicken.
Most recently we had tried Merrick Terducken which she liked but for some reason caused her to be pooping like 4 times a day of formed stool, including waking up in the middle of the night. I really don't know why... too much fiber for her, maybe.
I usually add something in to "get her started". Most recently it's been a canned food by Weruva called Funky Chunky Chicken Soup. I only put a little in.
Sometimes I mix in a little steamed chicken or roasted turkey, or frozen raw chicken (forgot the brand, maybe Natures Variety?), or a little shredded cheese.
I know it's my own fault she is somewhat finicky.